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The equation which can be used to find the number of sides of a polygon when the sum of the interior angles is given is n = (s + 360) / 180
How to rearrange equation
s = 180n – 360
- Add 360 to both sides
s + 360 = 180n
- divide both sides by 180
(s + 360) / 180 = n
n = (s + 360) / 180
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