Question

What is the measure of an interior angle of a regular polygon of 9 sides

Answer 1

HEYA!!
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✨A regular polygon with nine sides :-

Sum of interior angles : ( n- 2 ) × 180

= ( 9-2 ) × 180

= 7 × 180

Measure of one interior angle

= 7× 180 / 9

= 7 × 20

= 140


✨For a regular polygon with 9 sides , the measure of each interior angle is 140° .

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Answer 2

Sum of interior angles = (n - 2) x 180 where n is the number of sides.

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Given that n = 9,

Sum of interior angles = (9 - 2) x 180 = 1260.

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Find 1 angle:

1 angle = 1260 ÷ 9 = 140°

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Answer: one interior angle = 140°