NCERT solution class 7 chapter 14 Symmetry 14.2 mathematics

EXERCISE 14.2

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Q 1, Ex 14.2- Symmetry - Chapter 14 - Maths Class 7th - NCERT

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Question 1:

Which of the following figures have rotational symmetry of order more than 1:

Answer:

(a) The given figure has its rotational symmetry as 4.

(b) The given figure has its rotational symmetry as 3.

(c) The given figure has its rotational symmetry as 1.
(d) The given figure has its rotational symmetry as 2.

(e) The given figure has its rotational symmetry as 3.

(f) The given figure has its rotational symmetry as 4.

Hence, figures (a), (b), (d), (e), and (f) have rotational symmetry of order more than 1.

Q 2, Ex 14.2- Symmetry - Chapter 14 - Maths Class 7th - NCERT

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Question 2:

Give the order of rotational symmetry for each figure:

Answer:

(a) The given figure has its rotational symmetry as 2.

(b) The given figure has its rotational symmetry as 2.

(c) The given figure has its rotational symmetry as 3.

(d) The given figure has its rotational symmetry as 4.

(e) The given figure has its rotational symmetry as 4.

(f) The given figure has its rotational symmetry as 5.

(g) The given figure has its rotational symmetry as 6.

(h) The given figure has its rotational symmetry as 3.