SOLUTION: If a heptagon has an area of 130 in2, what is the measure of one side?

Algebra ->  Surface-area -> SOLUTION: If a heptagon has an area of 130 in2, what is the measure of one side?      Log On


   



Question 1039913: If a heptagon has an area of 130 in2, what is the measure of one side?
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
If a heptagon has an area of 130 in2, what is the measure of one side?
-------
If it's regular, all sides equal:
Area+=+ns%5E2%2Acot%28180%2Fn%29%2F4 n = 7
130+=+7s%5E2%2Acot%28180%2F7%29%2F4
520/7 = s^2*cot(180/7)
s^2 =~ 35.774
s =~ 5.9811 inches