Question 1112334
135=(n-2)x180/n
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Use * (Shift 8) for multiply, not x.
135=(n-2)*180/n
135n = (n-2)*180
135n = 180n - 360
-45n = -360
n = 8
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Angle = (n-2)*180/n is the equation for the interior angles of a regular polygon with n sides.
n = 8 --> an octagon with equal angles and equal side lengths