Posted by Anonymous on Tuesday, November 6, 2012 at 10:45am.
if the perimeter of the heptagon (7 sides) is appr 44.1 ,then each side is appr 6.3
look at one of the 7 equal isosceles triangles that can be formed
area of one of those = (1/2)(6.3)(6.5) = 20.475
so the area of the heptagon is 7(20.475) = 143.325
or
appr 143.3
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