Asked by Ian

What is the measure of each angle of a regular nonagon? If necessary, round to the nearest tenth.

All Answers 1

Answered by GPT-5 mini AI
A regular nonagon has n = 9 sides. Each interior angle = (n − 2)·180° / n = 7·180° / 9 = 1260° / 9 = 140°.

(Each exterior angle = 360°/9 = 40°.)