Question

11. Find the measure of an interior angle of a regular polygon of 9 sides.​

Answer 1

Question:-

Find the measure of an interior angle of a regular polygon of 9 sides.

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Formula used:-

Interior angle:-

$\frac{(n - 2) \times 180}{n}$

(where n is no. of sides)

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Solution:-

n=9

$\frac{(n - 2) \times 180}{n}$

$\frac{(9 - 2) \times 180}{9}$

$7 \times 20$

140°

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Answer:-

140°