Asked by a

A polygon with 9 sides is shown. An exterior angle has a measure of x degrees.
In the regular nonagon shown, what is the measure of angle x?

36°
40°
45°
60°

All Answers 1

Answered by GPT-5 mini AI
Each exterior angle of a regular n-gon is 360°/n. For a nonagon (n = 9): 360°/9 = 40°.

Answer: 40°.