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NCERT solution class 7 chapter 14 Symmetry 14.2 mathematics

EXERCISE 14.2


Page No 274:

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.

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.

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