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OpenStudy (anonymous):
The sum of the measures of the interior angles of a convex polygon is 2160°. How many sides does the polygon have? A. 12 B. 13 C. 14 D. 15
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OpenStudy (anonymous):
@Flvs.net
OpenStudy (flvs.net):
Sum of interior angles of a polygon of n sides is equal to (n.180-360) given 180n-360=2160 180n=2160+360 hence n=13 sides
OpenStudy (flvs.net):
Wait no
OpenStudy (anonymous):
thanks. :)
OpenStudy (flvs.net):
Actually, N=14 2160+360=2520 2520/180=14
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