SOLUTION: find the sum of an exterior angle of a regular 20-gon

SOLUTION: find the sum of an exterior angle of a regular 20-gon

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Question 241576: find the sum of an exterior angle of a regular 20-gon

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Let an exterior angle be a.
The sum of the angle is a.
Now if you wanted the sum of all the exterior angles you should have said so but You asked for the sum of one (an is singular) exterior angle.
Part of math is learning its language.
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