The sum of the interior angles of a regular polygonis $$1260^\circ$$, What is the difference between an exterior angle and an interior angle of the polygon?
The sum of the interior angles of a regular polygon =Â $$1260^\circ$$
(n - 2) $$\times 180 =Â 1260^\circ$$
n - 2 = 7
n = 9
Exterior angle = 360/9 = 40$$\degree$$
Interior angle = 180 - 40 = 140
Difference = 140 - 40 = $$100\degree$$
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