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OpenStudy (anonymous):
How many sides does a regular polygon have if each exterior angle measures 72?
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OpenStudy (anonymous):
The exterior angles add up to 360. So there are n angles of 72 which add up to 360. So\[72n=360\]Solve for n.
OpenStudy (anonymous):
so 5? so its a penatgon..cool, thansk :)
OpenStudy (anonymous):
Yep. :)
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