Page 251 - Start Up Mathematics_6

Solution: The lines of symmetry are drawn as dotted lines in the following figures:

(a) (b)

No line of symmetry 2 lines of symmetry

(c) (d)

4 lines of symmetry 4 lines of symmetry

EXERCISE 13.2

1. Find the number of lines of symmetry for each of the following shapes:

(a) (b) (c)

(d) (e) (f)

2. Draw the line(s) of symmetry for each of the following shapes:

(a) (b) (c) (d)

3. Consider the letters of the English alphabet from A to Z. List among them the letters which have:
(a) only vertical line of symmetry (like A). (b) only horizontal line of symmetry (like B).
(c) both vertical and horizontal lines of symmetry (like I).
(d) no lines of symmetry (like Q).

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