What is the measure of an exterior angle of a regular 7-sided polygon? The answer must be a decimal.

Question

asked Dec 16, 2018 103k views

1 Answer

Compositr · Answer 1 · 2018-12-21T20:07:54+0000

1 interior angle = [(n-2)180]÷n
= [(7-2)×180]÷7
= 900÷7 = 128.57 °
an exterior angle = 180 - interior
= 180-128.57
= 51.43°