The formula below gives the summer of degrees, S, of the interior angles of a polygon. if n represents the number of sides, which equation solves for n?
S = (n - 2) x 180
S/180 = n - 2
Its pretty obvious from here...
S = (n - 2) * 180
n = S/180 + 2
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If you are not sure what to do, use the real numbers:
S = (n -2) * 180 S = 360 n = 4
360 = (4 - 2) * 180
4 = 360/180 + 2
4 = 4
