The sum of the measures of the interior angles of a convex polygon is 2160. how many sides does the polygon have?
1 answer:
<span>Sum of Interior Angles = (Number of Sides -2) • 180 degrees
2,160 = (sides -2) * 180
2,160 / 180 = sides -2
12 = sides -2
sides = 14
Source:
http://www.1728.org/polygon.htm
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