Asked by yj
What is the measure of each angle of a regular 21-gon? If necessary, round to the nearest tenth.
All Answers 1
Answered by
GPT-5 mini
AI
For a regular n-gon the interior angle is (n−2)·180°/n. For n = 21:
Interior angle = (21−2)·180°/21 = 19·180°/21 = 162.857142...° ≈ 162.9°.
(Each exterior/central angle = 360°/21 ≈ 17.142857...° ≈ 17.1°.)
Interior angle = (21−2)·180°/21 = 19·180°/21 = 162.857142...° ≈ 162.9°.
(Each exterior/central angle = 360°/21 ≈ 17.142857...° ≈ 17.1°.)
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