Question

Each exterior angle in a regular polygon has a measure of 18°. How many sides does the polygon have?.

Answer 1

Answer: 20 sides

Work Shown:

E = exterior angle = 18 degrees

n = number of sides of a regular polygon

n = 360/E

n = 360/18

n = 20

This is a 20 sided regular polygon. It is considered a regular icosagon.