Question

Calculate the Number of sides of the regular polygon whose interior angle is 160°
​

Answer 1

Answer: 18 sides

Explanation:

Subtract the interior angle by 180° to get the exterior angle.

180 - 160 = 20°

Exterior angle = 20°

Then do 360° ÷ angle of exterior angle

360° ÷ 20° =

18.

Answer 2

The number of sides of the polygon is 18.