SOLUTION: I am a regular polygon with one exterior angle of 20 degrees. What is the sum of my interior angles?
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Question 855787: I am a regular polygon with one exterior angle of 20 degrees. What is the sum of my interior angles?
Answer by KMST(5328) (Show Source): You can put this solution on YOUR website!
The measures of the exterior angles, each measuring , add up to , so
-->--> .
THe polygon has exterior angles, sides, vertices, interior angles.
Each interior angle is supplementary to the adjacent exterior angle,
so each interior angle measure .
The sum of the measures of the interior angles, each measuring is
.
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