Question

Class 7 Maths MCQ Questions for Symmetry with Answers?

Answer 1

Students can refer to the following Symmetry Class 7 MCQ Questions with Answers provided below based on the latest curriculum and examination pattern issued by CBSE. Our teachers have developed really good Multiple Choice Questions covering all important topics in each chapter which are expected to come in upcoming tests and exams, as MCQs are coming in all exams now. Therefore, practice them carefully to get full understanding of topics and get good marks. Clear all the fundamentals and prepare thoroughly for the exam taking help from Class 7 Maths Symmetry Multiple Choice Questions.

Solving MCQ Questions for CBSE Class 7 Maths Symmetry With Answers on Sarthaks eConnect is the best way to revise and prepare for CBSE Class 7 Maths Examination. These Questions will helps students to check their level of exam preparation and socres maximum marks in examinations. Know your preparation level on this chapter by taking tests of these MCQ Questions Practicing the Multiple Choice Questions for Class 7 Maths aids students to attempt the board exams with full confidence. 

Practice MCQ Questions for Class 7 Maths

1. How many lines of symmetry are there in an equilateral triangle?

(a) 1
(b) 2
(c) 3
(d) 4

2. How many lines of symmetry are there in a square?

(a) 1
(b) 2
(c) 3
(d) 4

3. How many lines of symmetry are there in a rectangle?

(a) 1
(b) 2
(c) 3
(d) 4

4. How many lines of symmetry are there in a regular pentagon?

(a) 1
(b) 2
(c) 3
(d) 5

5. How many lines of symmetry are there in a regular hexagon?

(a) 2
(b) 4
(c) 6
(d) 3

6. How many lines of symmetry does the following figure(Scalene triangle) have?

(a) 3
(b) 2
(c) 1
(d) 6

7. How many lines of symmetry are there in an isosceles triangle?

(a) 4
(b) 3
(c) 1
(d) 2

8. How many lines of symmetry are there in a rhombus?

(a) 1
(b) 2
(c) 3
(d) 4

9. How many lines of symmetry are there in a parallelogram?

(a) 0
(b) 1
(c) 2
(d) None of these

10. The number of lines of symmetry that a quadrilateral cannot have

(a) 1
(b) 2
(c) 3
(d) 4

11. The order of rotational symmetry of an equilateral triangle is

(a) 2
(b) 1
(c) 3
(d) 5

12. What is the order of rotational symmetry of a square?

(a) 3
(b) 4
(c) 5
(d) 6

13. Give the order of rotational symmetric for each of the following figures when rotated about the marked point (x)

(a) 180º
(b) 60º
(c) 120º
(d) 30º

14. Which of the following letters of the English alphabet has reflectional symmetry about a horizontal mirror?

(a) H
(b) K
(c) M
(d) W

15. Which of the following letters of the English alphabet has reflectional symmetry about both horizontal and vertical mirrors?

(a) O
(b) Y
(c) T
(d) L

16. The quadrilateral which has both line and rotational symmetry of order more than 1 is

(a) isosceles triangle
(b) rhombus
(c) scalene triangle
(d) square

17. Which of the following has only one line of symmetry?

(a) A rectangle
(b) A square
(c) Isosceles triangle
(d) An equilateral triangle

18. The angle of rotation of an Equilateral Triangle is

(a) 120º
(b) 270º
(c) 180º
(d) 360º

19. The number of times a figure fits into itself in one complete rotation is called the order of ………………….. symmetry.

(a) Revolution
(b) Centre
(c) Point
(d) Rotational

20. A rectangle is symmetrical about the lines joining the ------- of the opposite sides.

(a) midpoints
(b) vertices
(c) Point
(d) none of above

21. The order of rotational symmetry of a circle is:

(a) 1
(b) 4
(c) 2
(d) infinite

22. In a circle every __ is a line of symmetry

(a) diameter
(b) both
(c) chord
(d) None of those

23. The letter F has

(a) no line of symmetry
(b) one vertical line of symmetry
(c) one horizon line of symmetry
(d) two lines of symmetry

24. The two figures are mirror images of each other. Choose the correct option.

(a) Both are equal
(b) Both are similar
(c) Both A and B are correct
(d) None of the above

25. Line symmetry is also known as _______ symmetry.

(a) rotational
(b) non-linear
(c) irregular
(d) reflection

Answer 2

1. Answer: (c) 3

Explanation: Equilateral triangles have all three sides equal and all three angles equal showing 3 lines of symmetry.

2. Answer: (d) 4

Explanation: A line of symmetry is the line that divides the shape into two halves that match exactly. A square has four lines of linear symmetry. One crosses through each diagonal. The other is the two lines that cross horizontally and vertically through the middle of the square.

3. Answer: (b) 2

Explanation: A rectangle has two lines of symmetry as shown in the figure. A rectangle can be folded into half either horizontally or vertically.

4. Answer: (d) 5

Explanation: lines of symmetry of a regular pentagon has 5 lines of symmetry.

5. Answer: (c) 6

Explanation: A regular hexagon with six equal sides has six lines of symmetry. For all regular polygons, the number of lines of symmetry is equal to the number of sides. That is an equilateral triangle has 3 lines of symmetry, a square has 4 lines of symmetry, similarly, a regular hexagon has 6 lines of symmetry.

6. Answer: (d) 6

Explanation:  A line of Symmetry divides a figure into two mirror-image halves.
But a line of Symmetry cannot divide the above triangle into two mirror-image halves because it is a scalene triangle. Therefore, the above triangle has 0 lines of symmetry.

7. Answer: (c) 1

Explanation: An isosceles triangle has one line of symmetry. However, if the isosceles triangle is also an equilateral triangle, then it has three lines of symmetry.
But the given triangle is not an equilateral triangle. An isosceles triangle is defined as a triangle with two sides of equal length. An equilateral triangle is defined as a triangle with three sides of equal length. Therefore, an equilateral triangle is also an isosceles triangle. 
This triangle has 2 sides of equal length. When an isosceles triangle has exactly two sides of equal length, then it has just 1 line of symmetry that runs from the vertex between the two sides of equal length to the midpoint of the side opposite that vertex.

8. Answer: (b) 2

Explanation: Rhombus has 2 lines of symmetry which cuts it into two identical parts. Both the lines of symmetry in a rhombus are from its diagonals. So, it can be said the rhombus lines of symmetry are both diagonals. The rhombus has 2 lines of symmetry.

9. Answer: (a) 0

Explanation: The number of lines of symmetry of a parallelogram depends on the type of parallelogram. A non-special parallelogram does not have any lines of symmetry. This includes any quadrilateral with two pairs of parallel and equal sides, except for rectangles, squares, and rhombuses. A rectangle is a parallelogram with four right angles. This property allows it to have two lines of symmetry. A rhombus is a parallelogram with four equal sides. The number of lines of symmetry of a rhombus depends on whether it is a square or not. If it has four right angles, the rhombus is a square and thus has four lines of symmetry. If not, the rhombus only has two lines of symmetry.

10. Answer: (c) 3

Explanation: Number of lines of symmetry in a quadrilateral cannot be three.

11. Answer: (c) 3

Explanation: If an equilateral triangle is rotated by 120 (one-fifth of 360), then it exactly fits its own outline. Therefore the equilateral triangle has rotational symmetry of order 3.

12. Answer: (b) 4

Explanation: Order of rotational symmetry is the number of times an object fits itself when rotated by 360º.As we can see from the figure given above, the square fits itself 4 times during a full rotation of 360º. Hence, it has the rotational symmetry of order 4.

13. Answer: (c) 120º

Explanation:  We can see that three yellow lines which are at 120º each are lines of symmetry. So, the given figure has rotational lines of symmetry that is after moving the figure by 120º we get the same figure again.

14. Answer: (a) H

Explanation: H, I, O, X are the letters having a reflectional symmetry about both the vertical mirror and the horizontal mirror.

15. Answer: (a) O

Explanation: H, I, O, X are the letters having a reflectional symmetry about both the vertical mirror and the horizontal mirror.

16. Answer: (d) square

Explanation: Square has both line and rotational symmetry of order more than 1.

17. Answer: (c) Isosceles triangle

Explanation: Isosceles triangle has only one line of symmetry.

18. Answer: (a) 120º

Explanation: The angle of rotation of an Equilateral Triangle is 120º

19. Answer: (d) Rotational

Explanation: The number of times a figure fits into itself in one complete rotation is called the order of rotational symmetry. A figure has a rotational symmetry of order 1, if it can come to its original position after full rotation or 360º.

20. Answer: (a) midpoints

Explanation: A rectangle is symmetrical about the lines joining the mid point of the opposite sides.

21. Answer: (d) infinite

Explanation: A circle has an infinite 'order of rotational symmetry'. That is, a circle will always fit into its original outline, regardless of how many times it is rotated.

22. Answer: (a) diameter

Explanation: A circle has infinitely many lines of symmetry: any diameter lies on a line of symmetry through the center of the circle.

23. Answer: (a) no line of symmetry

Explanation: The letter F has no lines of symmetry.

24. Answer: (c) Both A and B are correct

Explanation: One is the mirror image of other. Hence, the dimensions of the of the two figures will remain same.The two figures are congruent and we know that all congruent figures are similar to each other.Thus, both options A and B are correct.

25. Answer: (d) reflection

Explanation: Line symmetry is also known as reflection symmetry.Because a mirror line resembles the line of symmetry, where one half is the mirror image of the other half.

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