Question

The exterior angle measure of a regular polygon Is 20 degrees. How many sides does the polygon have?

A. 20
B.18
C.9
D.16​

Answer 1

18 sides

Explanation:

Exterior angle = 360° ÷ n

20° = 360°/n

n× 20 = 360/n ×n

20n = 360

n= 360/20

n = 18