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OpenStudy (anonymous):
The measure of each exterior angle of a regular polygon is 30°. How many sides does the polygon have? 10, 12, 14, or 15
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OpenStudy (anonymous):
is it 12?
OpenStudy (anonymous):
You are correct. A rule for all regular polygons, the sum of all exterior angles is 360. Since you'll need twelve thirties to make a 360, it has 12 sides.
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