SOLUTION: What regular polygon has an exterior angle measure of 18?

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Question 133425: What regular polygon has an exterior angle measure of 18?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
What regular polygon has an exterior angle measure of 18?
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The exterior angles always add up to 360 degrees.
Your problem:
(one ext. angle)*(number of sides) = 360
number of sides = 360/18 = 20
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The regular polygon has 20 sides.
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Cheers,
Stan H.