Question

How many sides does a regular polygon have if each of its interior angles is 160 degree?​

Answer 1

Answer:

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Answer 2

Answer:

Each interior angle of regular polygon

= ( n - 2 ) × 180°

n

160° = ( n - 2 ) × 180°

n

160n = 180n - 360°

160n-180n = - 360°

- 20n = - 360°

n = - 360°

- 20

n = 18

Hence The polygon has 18 sides.