SOLUTION: how do you find out how many sides a polygon has if your given the measure of one interior angle of 150 degrees?

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Question 250399: how do you find out how many sides a polygon has if your given the measure of one interior angle of 150 degrees?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
how do you find out how many sides a polygon has if your given the measure of one interior angle of 150 degrees?
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The easiest way is to use the exterior angles.
Ext angle = 180-150 = 30 degrees
The sum of the exterior angles is always 360.
360/30 = 12 sides