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Math crosswords. Crosswords on mathematics Crossword on the topic of geometric shapes

29.10.2023

Crossword

"Geometric figures"

Completed:

students 43 gr.

Alekseeva M.,

Alexandrova T., Zaitseva A.,

Pshenina V.

Question 1

It is limited on both sides

And drawn along the line.

You can measure its length

And it's so easy to do!

Question 2

It has four sides

Everyone is equal to each other.

With a rectangle he is a brother,

It's called...

Question 3

No matter where you take her,

This is the line

Without end and without beginning,

It's called...

Question 4

The square stood on the corner -

He poked his nose at the ceiling.

It grew upward for another five days.

What should we call it now?

Question 5

No corner, no side,

And my relatives are nothing but pancakes.

Question 6

It consists of a point and a line.

Well, guess who he is?

It happens that when it rains, it will break through from behind the clouds.

Have you guessed it now? This...

Question 7

Three sides and three corners.

And every schoolchild knows:

The figure is called

Certainly, ...

Question 8

The segment links form angles,

A line is being built, but not a straight line.

The line bends and breaks.

Tell me, friends, what is it called?

Question 9

This strange figure

Well, quite a miniature!

And on a small piece of paper

We will supply hundreds...

Two twin squares -

Their father's halves.

Apply by sides

Tell me their father's name.

How many minimum sticks are needed to fold 3 squares?

What can you call this figure?

1) square

2) polygon

3) quadrilateral

If you draw a square whose perimeter is equal to the perimeter of a rectangle with sides 5 cm and 3 cm, how many cm will the side of the square be?

The perimeters of the star and the hexagon are the same. The side of a hexagon is 15 cm. What is the side of a star?

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Slide captions:

Crosswords on geometry Basic properties of the simplest geometric figures Triangle, sum of the angles of a triangle MUNICIPAL EDUCATIONAL INSTITUTION REVDA SECONDARY SCHOOL No. 1 IM. V.S. VORONINA 2008-2009 school year Compiled by students of 7th grades A and B: 1. Olga Baskova 2. Marina Gagarina 3. Nikita Golubyatnikov 4. Ekaterina Zubak 5. Anastasia Lebedinets 6. Sofia Loseva 7. Lvov Lev 8. Perevalova Yesenia 9. Pisareva Alexandra 10. Popova Anna 11. Sytnik Oleg 12. Fedyushin Ivan Supervisor: mathematics teacher Golubyatnikova T.N. Computer layout: computer science teacher V.G. Kumarov

1 1 3 2 3 4 4 5 5 Basic properties of the simplest geometric figures Compiled by 7th grade student A Olga Baskova Vertical: Horizontal: U N T R E M E I Y G K P O L U P L O S O S TYPE OF DIRECT CUT R E A N P L A E T R I A WORLD DEVELOPED R T R E U G O L N I C ADDITIONAL 1 The science of the properties of geometric shapes 2 What does a straight plane divide into? 3 The main geometric figures on the plane are a point and ... 4 A figure that consists of a point and two different half-lines emanating from this point. 5 Part of a line that consists of all points of this line lying on one side of a given point of it 1 Part of a line that consists of all points of this line lying between two given points of it. 2 Section of geometry in which figures on a plane are studied. 3 An angle equal to 180° 4 A figure that consists of three points that do not lie on the same straight line and three segments connecting these points in pairs. 5 Different half-lines of the same line that have a common starting point.

1 1 3 2 2 3 4 4 1 2 3 4 1 2 3 4 Basic properties of the simplest geometric figures Compiled by 7th grade student A Gagarina Marina A section of geometry in which figures on a plane are studied. A ray that emanates from the vertex of an angle passes between its sides and divides the angle in half. The science of the properties of geometric shapes. Vertical: The part of a line that consists of all the points on that line that lie between two given points. Horizontal: A figure that consists of a point and two different half-lines emanating from that point. Different half-lines of the same line that have a common starting point. A figure that consists of three points that do not lie on the same line, and three segments connecting these points in pairs. The part of a line that consists of all points of this line that lie on one side of a given point. U G O L P L A N I M E T R I A T R E A N G L I K B I S E C T R I A S O T R E Z O K U P O L P R I AM M A O T R E M E I Y A D D O P L O N I T E L

1 2 1 4 5 5 2 3 4 3 1 4 5 2 5 3 1 2 3 4 Basic properties of the simplest geometric figures Compiled by 7th grade student B Zubak Ekaterina Horizontal: A system of inferences that serves to establish a new position based on other previously known Angle , equal to 180° Vertical: Part of a line that consists of all points of this line lying on one side of a given point. What splits a plane into two half-planes? A figure that consists of three points that do not lie on the same line, and three segments connecting these points in pairs. A part of a line that consists of all points of this line that lie between two given points. The statement that is being proven... The science of the properties of geometric figures. A figure consisting of two rays emanating from one point. A branch of geometry in which figures on a plane are studied. T R E A G L N I K O O R K T E Z O T R M E O E A A Z V E N U T Y R R D O A Z E L S A T V K T O P O L U P I M A Y R P R Y A I M O E M E T R I A G U G O L P L A I M E T R I A N

5 3 2 4 1 2 3 4 1 6 5 7 6 7 3 1 4 2 3 1 2 5 4 5 6 7 6 7 Compiled by 7th grade student A Golubyatnikov Nikita Vertical: A statement that is contained in the formulations of the basic properties of the simplest figures and not is being proven A figure that consists of a point and two different half-lines emanating from this point The name of an angle whose sides are complementary lines of one line The statement that is being proven Horizontally: A part of a line that consists of all points of this line lying on one side of the given one its points Part of a line, which consists of all points of this line lying between two given points of it. The science of the properties of geometric figures. What are the names of triangles in which the corresponding sides are equal and the corresponding angles are equal, while the corresponding angles must lie opposite the corresponding sides Formulation that reveals the content of the concept Basic properties of the simplest geometric figures The name of various rays that have a common starting point and lie on the same straight line A figure that consists of three points that do not lie on the same straight line, and three segments connecting these points in pairs. A section of geometry in which figures on the plane are studied. R V N E T O C H A I N T R A S P O R T N P L A E T R I A M I Basic geometric figure on a plane Tool for measuring angles UCH L G E O M T R I E E O R D L E N I E U T R G L I K E O N U G L O T R M E A O R A D V E N U T Y R Y K S I O M A A

1 2 4 3 5 3 1 6 9 8 4 6 7 5 7 3 4 1 Section of geometry in which figures on a plane are studied Compiled by 7th grade student A Popova Anna Basic properties of the simplest geometric figures 2 Vertical: 5 Part of a straight line, which consists of all points of this line lying on one side of its given point Length of a segment enclosed between two points The first point of the segment is called ... A tool for measuring angles 6 An angle is less than 90  7 A figure that consists of a point and two different half-lines emanating from this point 8 A figure that consists of three points that do not lie on the same line, and three segments connecting these points in pairs 9 A part of a line that consists of all points of this line that lie between two given points of it Horizontally: Basic figures of the plane 1 Tool for measurements of length 2 An angle equal to 180° 3 An angle greater than 90° 4 An angle equal to 90° 5 The science of the properties of geometric figures 6 A straight line divides a plane into two ... 7 STRAIGHT M A L I N E Y C T R A N S P O R T R O T R E S K T R E A G L N I C L N I M E R I A P A T T O C H C A A R Z V Y R N U Y T N A L O Y O R P Y M Y R O P O L U P L O S S T I C U C H U L O S T Y R T U P Y O G E M E R I T O Y A R S S O Y N I E T

1 1 2 3 4 2 Basic properties of the simplest geometric figures Compiled by 7th grade student B Loseva Sofia The science of the properties of geometric figures 1 Part of a line that consists of all points of this line lying on one side of its given point 2 A figure that consists of a point and two different half-lines emanating from this point 1 2 A figure that consists of three points that do not lie on the same line, and three segments connecting these points in pairs 3 A part of a line that consists of all points of this line lying between two of its data dots 4 Section of geometry in which figures on a plane are studied Vertical: Horizontal: O T R E M E I Y G U G O L T R E A G L N I C O T E S C R O UCH L N P L A E T R I M I

1 2 3 2 1 4 3 4 Basic properties of the simplest geometric figures Compiled by 7th grade student A Perevalova Yesenia 1 Part of a line that consists of all points of this line lying between two given points of it 2 A figure that consists of a point and two different half-lines, emanating from this point 3 What is the name of an angle of 180° Vertical: 4 A ray that emanates from the vertex of the angle passes between its sides and divides the angle in half Horizontal: 1 Part of a line that consists of all points of this line that lie one after another side from this point. 2 What is the name of an angle of 90° U P O L R I A M A U G O L R A V E N U T Y R B I S S E C T R I A S O T R E Z O K T R E U G O L N IK 3 A figure that consists of three points that do not lie on the same line, and three segments connecting these points in pairs. 4 Angle greater than 90°

5 3 4 1 2 2 3 5 4 3 1 5 Compiled by 7th grade student A Lvov Lev 1 A perpendicular drawn from the vertex of a triangle to a line containing the opposite side of the triangle 2 A triangle whose two sides are equal 3 The side of a right triangle opposite a right angle Po vertical: 4 A ray that emanates from the vertex of an angle passes between its sides and divides the angle in half. Horizontally: 2 1 The side of a right triangle adjacent to a right angle 5 A triangle in which all sides are equal 4 M E D I A N A T E R U G O L N I K S O N O V A N I E D R Y M O C A T E T A figure that consists of three points that do not lie on the same straight line and three segments connecting these in pairs points. An angle having a degree measure of 90° A segment drawn from the vertex of a triangle to the middle of the opposite side. What is the name of the side of an isosceles triangle that is not a lateral one? I G I P T E N U S O A R A V O H O M E R N Y E V Y S O A T Triangle, sum of the angles of a triangle

1 2 3 1 2 4 5 6 4 5 3 7 Compiled by 7th grade student A Golubyatnikov Nikita Vertical: Horizontal: 1 A ray that comes from the vertex of an angle passes between its sides and divides the angle in half 2 A geometric figure whose sum of angles is equal 180  3 The length of a perpendicular drawn from a given point to a line 4 A perpendicular drawn from a vertex of a triangle to a line that contains the opposite side of the triangle 5 A side adjacent to a right angle of a triangle 6 A triangle whose two sides are equal 7 A segment of a line perpendicular to a given line , and having at one of its ends the point of intersection of these lines 1 The side of a right triangle opposite the right angle 2 Lines that do not intersect 3 The angle adjacent to the angle of the triangle at a given vertex 4 Internal angles formed by the intersection of two parallel lines of a third and the sum of their components 180  5 A segment drawn from the vertex of a triangle and connecting this vertex with the midpoint of the opposite side 6 A triangle in which all angles are equal to 60  A O G I P T E N U Z I B S S E K T R I S A T R E U G O L N I K R A V O B E D R E N Y C A T E T M E D I A N A V Y S O T A N U P P E R E L D I K Y R S R A S T O I N N I O D N S R O N E T O I O A R V N O S S T R O N Y N P R A L E L N Y E A L V E S H I N Triangle, sum of the angles of a triangle

5 4 1 2 3 2 3 1 4 5 Horizontal: Vertical: 1 A segment drawn from the vertex of a triangle to the middle of the opposite side 2 A triangle whose two sides are equal 3 A perpendicular drawn from the vertex of a triangle to a line containing the opposite side of the triangle 4 The side of a right triangle opposite the right angle 5 Length of the perpendicular dropped from a given point to a straight line Y R P I O U G L N O O E S R A S T I O N I O S T O N N Y N R R A V Compiled by 7th grade student A Sytnik Oleg R V N O B E D R Y A N A V S T O M E D I A N 1 A triangle that has a right angle 2 The side of a triangle adjacent to a right angle 3 A triangle that has all sides equal 4 A ray that emanates from the vertex of an angle, passes between its sides and divides the angle in half 5 Angle adjacent to the angle of a triangle at a given vertex Triangle, sum of the angles of a triangle

1 1 2 2 3 3 4 4 5 5 6 7 Vertical: Horizontal: 1 2 3 4 5 6 7 1 A triangle having a right angle 2 A ray that comes from the vertex of an angle passes between its sides and bisects the angle 3 Angle of a triangle adjacent to the outer one at a given vertex 4 A triangle whose two sides are equal 5 A line intersecting two or more other lines Compiled by 7th grade student B Lebedinets Anastasia A O G I P T E N U S E S R A S T O Y I N V E S H I N V HIGH S T A L Y R P I M O U G Y N Y O B S S E C T R I S A R E A V N N O B E D R N Y M D I A N A E A T T K K S E U S H A N U P P E D I K Y A L R R R Y T V N U E N I N Side of a right triangle, opposite to a right angle The length of a perpendicular dropped from a given point to a straight line An angle adjacent to the interior angle of a triangle at a given vertex A segment of a line perpendicular to a given one, which has one of its ends at their intersection point A side adjacent to a right angle of a triangle A segment connecting the vertex of a triangle to the middle opposite side Perpendicular drawn from the vertex of a triangle to a line that contains the opposite side of the triangle Triangle, sum of the angles of a triangle

1 1 2 3 4 5 6 7 8 5 6 1 2 3 4 7 1 8 Vertical: Horizontal: A triangle in which all sides are equal Compiled by 7th grade student A Pisareva Alexandra I O A R V N O S T R O N N Y W E S H I N N Y O R P I M O G L N Y I B S S E C T R I S A S O N O V A N I E I O N O S T O N N Y R R A V H E T A O G I P T E N U Z M D I A N E A Angle adjacent to the interior angle of a triangle at a given vertex Triangle that has a right angle Ray that emanates from the vertex of an angle, passes between its sides and bisects the angle A side of an isosceles triangle that is not a side A triangle in which two sides are equal A perpendicular drawn from the vertex of a triangle to a line that contains the opposite side of the triangle A side of a right triangle that is opposite a right angle A line segment connecting vertex of a triangle with the midpoint of the opposite side Triangle, sum of the angles of a triangle

2 3 1 4 1 2 3 5 4 Vertical: Horizontal: 1 2 3 4 1 2 3 4 5 Compiled by 7th grade student A Gagarina Marina I B S S E C T R I S A H I T H A M D I A N E A A O G I P T E N U Z N U P P E R E L D I K Y R K A T E T A R V N N O B E D R Y E N V E S A ray that emanates from the vertex of an angle passes between its sides and divides the angle in half. A perpendicular drawn from the vertex of a triangle to a straight line that contains the opposite side of the triangle. A line segment connecting the vertex of a triangle to the midpoint of the opposite side An angle of a triangle adjacent to the exterior at a given vertex A side of a right triangle opposite a right angle A segment of a line perpendicular to a given one, which has one of its ends at their intersection point A side adjacent to a right angle of a triangle A triangle whose two sides are equal Angle, adjacent to an angle of a triangle at a given vertex Triangle, sum of the angles of a triangle

1 6 3 4 5 1 2 3 4 5 6 7 Vertical: Horizontal: 1 1 A line intersecting two or more other lines Triangle, the sum of the angles of a triangle Compiled by 7th grade student B Fedyushin Ivan V E S H I N N I B S S E C T R I S A A T E T K E S R A S T O I A N V Y S O T A N U P P E R E L D I K Y R R P I M O Y R T V N U E N I N R E A V N O B E D R N Y O T R E M E IA G A O G I P T E N UZ 2 3 4 5 6 2 3 4 5 6 Angle adjacent to the interior angle of a triangle at a given vertex The ray that emanates from the vertex of the angle passes between its sides and divides the angle in half The side of a right triangle adjacent to the right angle Length of the perpendicular drawn from a given point to a line Perpendicular drawn from the vertex of the triangle to a line that contains the opposite side A segment of a line perpendicular to a given one, which has one of its ends at their intersection point An angle of a triangle adjacent to the exterior at a given vertex A triangle whose two sides are equal The science of the properties of geometric figures. A segment connecting the vertex of a triangle with the middle of the opposite side. The side of a right triangle opposite a right angle.

5 1 2 2 5 3 4 1 3 Vertical: Horizontal: 1 1 2 3 4 A triangle whose two sides are equal Compiled by 7th grade student B Ekaterina Zubak Triangle, the sum of the angles of a triangle A straight line intersecting two or more other straight lines R A B N O B E D R E N Y N N N V U T R E N IY A T T K E E K A S U S H I A O V Y S T E M D I N A A V N E S I N A O G I P T E U Z N The side of a right triangle adjacent to the right angle 2 3 The angle of the triangle adjacent to the external one at a given vertex. A perpendicular drawn from the vertex of the triangle to a line that contains the opposite side. A segment connecting the vertex of the triangle. with the middle of the opposite side Angle adjacent to the interior angle of a triangle at a given vertex Side of a right triangle opposite a right angle

The most important factor for success in learning is the students' interest in the subject.

Therefore, both the textbook and the lesson should be engaging. A student's interest in learning should be considered one of the most powerful factors in learning. But playful learning is not a concession to a lazy student in order to amuse him and thereby force him to learn. Learning should be fun. Mathematics should not be viewed as a system of truths that must be memorized, but as a system of reasoning that requires creative thinking. The ability to get people interested in mathematics is not an easy matter, and in this sense, personal skill or the author of the textbook should not be underestimated. Much depends on how to pose even an obvious question, and on how to involve all students in a discussion of the current situation. Game elements included in the lesson have a noticeable impact on student activities. The gaming motive is for them an effective reinforcement of the cognitive motive, promotes the activity of mental activity, increases concentration, perseverance, efficiency, and creates additional conditions for the emergence of joy, satisfaction, and a sense of teamwork.

Crossword 1. Young mathematician (5th grade)

Horizontal: 2. One followed by six zeros. 4. A unit of area equal to 10,000 m2. 6. A line segment connecting the center of a circle and any point on it. 10. The sum of the lengths of all sides of a polygon. 11. A fraction whose numerator is less than its denominator . 12. The sign used to write a number. 14. Law of addition: a + b = b + a.

Vertically:1. Shapes that match when superimposed . 3. Multiplication law (a + b) c = ac + sun. 5. A rectangular parallelepiped with all edges equal. 7. The name of the segments that make up the triangle. 8. A unit of mass equal to 1000 kg. 9. An equality containing an unknown. 14. Third rank of any class.

Answers:

Horizontally: 2. Million. 4. Hectare. 6. Radius. 10. Perimeter. 11. Correct. 12. Number. 14. Traveling.

Vertically: 1. Equal. 3. Distribution. 5. Cube. 7. Sides. 8. Ton. 9. Equation. 13. Hundreds.

Crossword 2. Young mathematician (5th grade)

Horizontally: 1. A book for studying any subject. 4. Break from school. 6. Sign used to record music . 9. A document given to a student upon graduation from school. 10. Month. 11. A large sheet used for drawings, wall newspapers, etc. 12. Drawing tool. 13. An object used by an artist to apply paint to canvas.

Vertical: 1. Time allocated at school for studying one of the subjects . 2. A sign used to represent a sound. 3. An institution that children attend five times a week. 5. Wooden stick with lead. 7. Liquid composition for writing. 8. The science.

Answers:

Horizontally: 1. Textbook, 4. Vacation, 6. Note, 9. Certificate. 10. August. 11. Whatman. 12. Compass. 13. Brush.

Vertically: 1. Lesson. 2. Letter. 3. School. 5. Pencil. 7. Ink. 8. History.

Crossword 3. Young mathematician (5th grade)

Horizontally: 1. Measure of time. 2. Smallest even number. 3. Very poor assessment of knowledge. 4. A series of numbers connected by action signs. 5. A measure of land area. 6. Number within ten . 7. Part of an hour. 8. 9. Smallest four-digit number. 10. Unit of the third category. 11. Century. 12. Arithmetic operation. 13. Name of the month.

Vertically: 7. Spring month. 8. Calculation device. 14. Geometric figure . 15. Small measure of time. 16. Length measure . 17. Subject taught in school. 18. Measure of liquids. 19. Currency unit. 20. Question to solve . 21. A certain number of units. 22. Name of the month. 23. First month of the year. 24. Last month of school holidays.

Answers:

Horizontally: 1 hour. 2. Two. 3. Unit. 4. Example. 5. Ar. 6. Four. 7. Minute. 8. Parentheses. 9. Thousand. 10. Hundred. 11. Century. 12. Division. 13. July.

Vertically: 7. March. 8. Abacus. 14. Square. 15. Second. 16. Meter. 17. Arithmetic. 18. Liter. 19. Ruble. 20. Problem. 21. Number. 22. May. 23. January. 24. August.

Crossword 4. For math lovers (6th grade)

Horizontal: 3. Signs that are placed when it is necessary to change the order of actions. 4. One of the points located on the coordinate ray, having a large coordinate. 8. An outstanding Soviet mathematician who, at the age of six, noticed that 1 2 = 1, 2 2 = 1 + 3, 3 2 = 1 + 3 + 5, 4 2 = 1 + 3 + 5 + 7, etc. 9. Numbers that multiply. 10. The unit for measuring segments by students in their notebooks. 13. Basic unit of mass. 14. An unbounded geometric figure that has no edges.

Vertically: 1. A necessary part of the problem text. 2. A unit of measurement for the volume of liquid, which is used in England and the USA (4 l.). 5. A rectangle with all sides equal. 6. One of the measurements of a rectangular parallelepiped . 7. A number that is sometimes obtained by division. 11. The number being divided. 12. A segment connecting the vertices of a triangle.

Answers:

Horizontally: 3. Parentheses. 4. To the right. 8. Kolmogorov. 9. Factors. 10. Centimeter. 13. Kilogram. 14. Flatness.

Vertically: 1 question. 2. Gallon. 5. Square. 6. Length. 7. Remainder. 11. Dividend. 12. Side.

Crossword 5. For math lovers (6th grade)

1. A number showing how many equal parts a whole is divided into. 2. The fractional line is a sign…. . 3. Dividing the numerator and denominator by the same natural number is... 4. Determine, without resorting to calculations, which expression is greater (the first or the second): 1 – 1/1998 or 1 – 1/1999 . 5. The banana fruit consists of peel and pulp. . The peel makes up 2/5 of the mass of the banana. The mass of the pulp is…. . kg, if the mass of bananas is 10 kg.

Answers: 1. Denominator. 2. Divisions. 3. Reduction. 4. Second. 5. Six.

Crossword 6. For math lovers (6th grade)

1. A sign separating a fractional and an integer part. 2. Fraction 3, 298" 3, 30 rounded to the digit……. 3. Compare, subtract, add decimals...... 4. The speed of the river current is ... km/h, if the speed of the boat along the current is 15.2 km/h, and against the current is 11.2 km/h. 5. Rye bread contains 52% protein. How many grams of bread contain 260 g of protein?

Answers: 1. Comma. 2. Hundredths. 3. Bitwise. 4. Two. 5. Five hundred.

Crossword 7. For geometry lovers (7th grade)

Horizontally: 1. A ray dividing an angle in half. 4. Triangle element. 5, 6, 7. Types of triangle (at the corners). 11. Ancient mathematician. 12. Part straight. 15. Side of a right triangle. 16. A segment connecting the vertex of a triangle to the middle of the opposite side.

Vertically: 2. Top of the triangle. 3. Figure in geometry. 8. Triangle element. 9. View of a triangle (sides). 10. A segment in a triangle. 13. A triangle whose two sides are equal. 14. Side of a right triangle. 17. Triangle element.

Answers:

Horizontally: 1. Bisector. 4. Side. 5. Rectangular. 6. Acute angular. 7. Obtuse. 11. Pythagoras. 12. Segment. 15. Hypotenuse. 16. Median.

Vertically: 2. Point. 3. Triangle. 8. Top. 9. Equilateral. 10. Height. 13. Isosceles. 14. Leg. 17. Angle.

Crossword 8. Young accountant (6th grade)

Horizontal: 1. The square of a prime number greater than 70. 3. A number whose digits form an arithmetic progression with a sum equal to 14. 6. Cube of a two-digit integer. 8. The square of an integer greater than 80. 9. A number whose digits form an arithmetic progression with a sum equal to 25. 11. The number 9 horizontally, written in reverse order. 14. Number 1 vertically minus number 4 vertically. 15. The smallest four-digit number that does not contain zeros. 16. 2 11 . 17. 550 times the horizontal cube root of 6.

Vertical: 1. The number 15 horizontally multiplied by 5. 2. A number in which the sum of the first two digits is equal to the sum of the last two digits. 4. The difference between the numbers 6 and 1 horizontally, multiplied by 9. 5. The vertical difference between numbers 2 and 4 is minus 41. 7. Ten times the number 2 vertically increased by 238. 8. The number 11 horizontally minus 2. 10. The sum of the numbers is 5 vertically and 12 vertically. 11. Number 4 vertically written in reverse order. 12. The horizontal square root of 1 multiplied by 43. 13. The difference between the numbers is 1 horizontally and 12 vertically.

Answers:

Horizontally: 1. 73 2 = 5329. 3. 5432. 6. 18 3 = 5832. 8. 85 2 = 7225. 9. 34567. 11. 76543. 14. 5555 – 4527 = 1028. 15. 1111. 16. 2 11 = 2048. 17. 550 * 5832 = 9900.

Vertically: 1. 1111 * 5 =5555. 2. 2433. 4. (5832 – 5329) * 9 = 4527. 5. 4527–2433 – 41= 2053. 7. 2433 * 10 + 3139 = 5192. 11. 7254. 12. 5329 * 43 = 3139. 13. 5329 – 3139 = 2190.

Crossword 9. For geometry lovers (8th grade)

Horizontally:1. Polygons having equal areas. 3. A quadrilateral whose area is equal to the square of its side. 6. A quadrilateral whose area is equal to the product of its base and its height. 7. A polygon whose area is equal to half the product of its base and its height. 9. The length of the leg of an isosceles right triangle whose area is 8 square meters. units

Vertical: 2. A quadrilateral whose area is equal to the product of its adjacent sides. 4. The length of a side of a square whose area is 64 square meters. units 5. What is the perimeter of a rectangle if its area is 8 square meters? units , and one side is 2 times larger than the other? 8. The area of a parallelogram whose acute angle is 30° and whose altitudes drawn from the vertex of the obtuse angle are 4 and 5.

Answers:

Horizontally: 1. Equal size. 3. Square. 6. Parallelogram. 7. Triangle. 9. Four.

Vertically: 2. Rectangle. 4. Eight. 5. Twelve. 8. Forty.

Crossword 10. For geometry lovers (grade 10)

Horizontally:3. Quadrangle. 4. A segment connecting the base of an inclined line with the base of a perpendicular drawn from the second end of the inclined line. 6. A number that is a multiple of 100. 9. Device for measuring angles. 10. Part of a plane bounded by a closed polyline. 13 . a number made up of ones and zeros. 14. Unit of measurement. 15. The exact prescription that defines the computational process. 16. Fractional part of the decimal logarithm.

Vertical: 1. Coordinate. 2. Polyhedron. 5. Quadrangle. 7. Trigonometric function. 8. The number to be multiplied by. 11. The number to divide by. 12. Coordinate.

Answers:

Horizontally: 3. Trapezoid. 4. Projection. 6. Four hundred. 8. Goniometer. 10. Polygon. 13. Million. 14. Centimeter. 15. Algorithm. 16. Mantissa.

Vertically: 1. Ordinate. 2. Pyramid. 5. Rectangle. 7. Cotangent. 8. Multiplier. 11. Divider. 12. Abscissa.

Crossword 11. Fun math.

Horizontal: 1. A scientist who immortalized an item of his clothing. 4. What you have to do in your head if you don’t have a calculator. 7. Favorite action of friends and comrades. 9. A textbook filled with problems. 11. Well, a very difficult question! 13. A scientist who regained his sight after being hit on the head. 15. Mathematical operation sung in Shainsky's song. 16. A close relative of the square. 17. School rat . 21. From now to now. 24. Rich relative of the square. Six times richer than a square. 25. Drum sounds before the start of the battle.

Vertical: 1. The richer relative of 24. 2. A diamond brought to life. 3. The path to the answer. 5. An ominous place in Bermuda. 6. What happens even with the Sun, and not just with a simple student. 8. A glimmer of light in a dark kingdom. 10. What happens even to a simple student if you try really hard. 12. A scientist who loved to take baths. 13. Girlfriend mistakes. 14. The road we choose. 19. Donut hole. 20. Fence for mathematical activities. 22. The usual place of a naughty child.

Answers:

Horizontally:1. Pythagoras. 4. Computing. 7. Favorite activity of friends of comrades. 9. Mathematics. 11. Charade. 13. Newton. 15. Multiplication. 16. Rectangle . 17. Bisector. 21. Line segment. 24. Cube 25. Fraction.

Vertically: 1. Square . 2. Square. 3. Solution. 5. Triangle. 6. Eclipse. 8. Ray. 10. Five. 12. Archimedes. 13. Inaccuracy. 14. Straight. 19. Circle. 20. Brackets. 22. Corner.

Crossword 12. Functions (grades 10–11)

Answers: Even, periodic, odd, monotonicity, extrema, increasing, constant sign, zeros, decreasing.

Crossword 13. For geometry lovers (grade 7)

Horizontally:

Vertically:

Answers:

Horizontally: 2. Parallelepiped. 5. Prism. 6. Circle. 9. Point. 10. Beam. 11. Cone. 12. Triangle. 14. Cylinder. 15. Cube 17. Height. 19. Pyramid.

Vertically: 1. Segment. 3. Direct. 4. Rectangle. 5. Flatness. 7. Angle. 8. Ball. 13. Circle. 16. Bisector. 18. Square.

Crossword 14. Mathematics experts (grades 10–11)

Horizontal: 1. An ancient Russian measure of length. 4. Soviet mathematician, teacher, known to every schoolchild as the author of the textbook “Four-Digit Mathematical Tables.” 8. Mapping a plane onto itself that preserves distance. 9. An ancient Greek mechanic and mathematician who lived around the 3rd century BC. e. 13. A set of lines passing through one point . 14. A geometric concept that characterizes the sameness of shapes. 15. Prefix for forming the names of submultiple units. 16. French mathematician of the 18th century. 19. Part of a circle . 21. Ratio of two numbers . 25. A closed surface, all points of which are equally distant from one point. 27. Indian mathematician of the 7th century. 28. Swiss mathematician of the 18th century.

Vertical: 1. English mathematician who had a phenomenal memory. 2. Polyhedron element . 3. German mathematician who lived 1849–1925. 4. English mathematician who first compiled tables of decimal logarithms. 5. French mathematician who lived 1842–1917. 6. Method. 7. Part of a circle. 10. A straight line perpendicular to the tangent at the point of contact. 11. Soviet mathematician and mechanic, academician of the USSR Academy of Sciences. 12. Greek mathematician of the 3rd century AD. e. 13. Geometric transformation of figures. 17. Letter of the Greek alphabet. 20. Polyhedron. 22. An ancient calculation stick among the Russian people. 23. A famous German artist who widely used geometric methods in fine art. 24. Right triangle element. 26. French mathematician, one of the creators of number theory.

Answers:

Horizontally: 1. Vershok. 4. Bradis. 8. Moving. 9. Philo. 13. Bun. 14. Similarity. 15. Micro. 16. Fourier. 19. Segment. 21. Fraction. 25. Sphere. 27. B rahmagupta. 28. Kramer.

Vertically: 1. Wallis. 2. Rib. 3. Klein. 4. Briggs. 5. Darboux. 6. Method. 7. Sector. 10. Normal. 11. Sobolev. 12. Diophantus. 13. Transfer. 17. Omega. 18. Schedule. 20. Prism. 22. Tag. 23. Durer. 24. Leg. 26. Farm.

Crossword 15. For geometry lovers (9th grade)

Horizontally: 7. Quadrangle . 8. Mathematical operation . 10. The result of adding homogeneous quantities. 11. An angle that is larger than a right angle but smaller than a straight angle. 12. The number that is sometimes obtained by division . 13. Auxiliary theorem. 15. One of the main quantities characterizing a geometric body. 17. Trigonometric function. 19. The distance between two points on a line. 20. A natural number, or its opposite, or zero. 24. A line segment connecting two adjacent vertices of a polygon. 25. Unit of mass. 26. A point on a plane equidistant from other points on the same plane. 27. A conclusion that the student learns by heart. 30. A sign used to write a number. 32. Unit of mass of gemstones . 33. The area of a square with a side equal to 1/10 of a mile. 34. Polyhedron.

Vertical: 1. Letter of the Greek alphabet. 2. Read the sign I in the entry AI BC. 3. Independent variable. 4. Trigonometric function . 5. The location of negative numbers on the coordinate line from the origin. 8. Unit of length. 9. A line on a coordinate plane depicting some kind of relationship. 14. A number equal to 10 6. 16. Sides of a trapezoid. 17. Body of rotation. 18. A surface consisting of all points in space located at a given distance from a given point. 21. One of the numbers in multiplication. 22. The oldest Russian weight unit, and in Kievan Rus the monetary unit of silver. 23. Regular triangular pyramids . 28. A sign used when comparing quantities. 29. A boundary that separates points on a given figure from other points on a surface. 31. Coin in denomination of 3 kopecks. 32. A group of digits in a number.

Answers:

Horizontally: 7. Trapezoid. 8. Addition. 10. Amount. 11. Dumb. 12. Remainder. 12. Lemma. 15. Volume. 17. Cosine. 19. Length. 20. Whole. 24. Side. 25. Ton. 26. Center 27. Rule. 30. Number. 32. Carat. 33. Tithe. 34. Pyramid.

Vertically: 1. Omega. 2. Lying down. 3. Argument. 4. Sine. 5. Left. 6. Kilometer. 9. Schedule. 14. Million. 16. Lateral. 17. Cone. 18. Sphere. 21. Multiplier. 22. Hryvnia. 23. Tetrahedrons. 28. Equal. 29. Line. 31. Altyn. 32. Class.

Crossword 16. Young mathematician (5th grade)

1. Letter of the Latin alphabet. 2. Unit of time. 3. The area of a square with a side of 10 m. 4. A segment connecting the center of a circle to any point on it . 5. Unit of measure of length. 6. A sign used when comparing numbers. 7. Part of a line connecting two points. 8. A unit of mass equal to 1000 g. 9. Mathematical operation sign. 10. A number that is greater than 36 but less than 44. 11. A rectangular parallelepiped with all edges equal. 12. An elementary sign in some symbolism. 13. Unit of area used in many Western countries (» 4047 m2). 14. Side of a cube face. 15. A number that is sometimes obtained by division. 16. A group of digits in a number. 17. Signs that are placed when it is necessary to change the usual procedure. 18. Letter of the Latin alphabet. 19. The value of the unknown letter at which a numerical equality is obtained from the equation.

This crossword puzzle is intended to test the theoretical knowledge of 7th and 8th grade students in geometry. The crossword puzzle can be used in general repetition lessons and in extracurricular work on the subject. Can be used in frontal and individual work with students, as well as when working in groups as a competitive element.