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OpenStudy (anonymous):
he measure of each exterior angle of a regular polygon is 20°. How many sides does the polygon have?
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OpenStudy (anonymous):
i got 18
OpenStudy (anonymous):
360/20
OpenStudy (anonymous):
The sum of the interior angles in a polygon with n sides is 180º(n – 2). The sum of the exterior angles of a polygon is 360º. And it makes sense because we can imagine how a 18 sided polygon will look like. All the interiors angle each measuring 160 degrees!
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