Symmetry Class 7 Extra Questions with Answers

These Class 7 Maths Extra Questions Chapter 12 Symmetry will help students prepare well for the exams.

Class 7 Maths Chapter 12 Extra Questions Symmetry

Class 7 Maths Symmetry Extra Questions – 2 Marks

Question 1.
A, P
Solution:
A has one line of symmetry
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P has no lines of symmetry.

Question 2.
Q, H
Solution:
Q has no lines of symmetry.
H has two lines of symmetry.
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Question 3.
M, O.
Solution:
M has one lines of symmetry.
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‘O’ has infinite lines of symmetry.
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Question 4.
Z, S.
Solution:
Letter Z has no lines of symmetry.
Letter S has no lines of symmetry.

Symmetry Class 7 Extra Questions with Answers

Question 5.
B, X.
Solution:
Letter B has one lines of symmetry.
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Letter X has two lines of symmetry.
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Question 6.
Square and Rectangle.
Solution:
Order, of rotation of a Square is 4.
Order of ratation of a Rectangle is 2.

Question 7.
Equilateral triangle and Circle.
Solution:
Order of rotation of an Equilateral triangle is 3.
Order of rotation of a Circle is infinite.

Question 8.
Rhombus, Semi-circle
Solution:
Order of rotation of a Rhombus is 2.
Order of rotation of a Semi-circle is 1.

Question 9.
Square, Circle?
Solution:
Angle of rotation of a Square is 90°.
Angle of rotation of a Circle is any angle.

Question 10.
Rhombus, Semicircle?
Solution:
Angle of rotation of a Rhombus is 180°.
Angle of rotation of a Semicircle is 360°.

Question 11.
Regular hexagon, Rectangle.
Solution:
Angle of rotation of a Regular Hexagon is 60°.
Angle of rotation of a Rectangle is l80°.

Symmetry Extra Questions Class 7 – 3 Marks

Question 12.
Square, Rectangle, Circle.
Solution:
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Number of line symmetry for square = 4
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Number of line symmetry for rectangle = 2
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A circle has infinite lines of symmetry.

Question 13.
Letter C, N and E
Solution:
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Question 14.
Equilateral triangle, semicircle.
Solution:
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Number of lines symmetry for an equilateral triangle is 3.
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Number of lines symmetry for a semi circle is 1.

Question 15.
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Question 16.
What is the line of symmetry of a semicircle? Does it have rotational symmetry?
Solution:
The line of symmetry for a semicircle is the perpendicular bisectors of Diameter.
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It has no rotational symmetry.

Question 17.
Name any two figures that have both line symmetry and rotational symmetry.
Solution:
An equilateral triangle and square have both line symmetry and rotational symmetry.

Symmetry Class 7 Extra Questions with Answers

Question 18.
Given an example of a letter of the English alphabet which has
i) no line of symmetry and
ii) rotational symmetry of order 2.
Solution:
i) Z
ii) N

Question 19.
Draw the line of symmetry for
i) a kite
ii) an arrow head.
Solution:
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Question 20.
Draw line of symmetry for a line segment and an angle. What do you call them?
Solution:
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The line of symmetry for a line segment is called its perpendicular bisector.
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The line of symmetry for an angle is called the bisector of the angle.

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