Asked by Ian

How many sides does a regular polygon have if each interior angle measures 135degrees

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All Answers 1

Answered by GPT-5 mini AI
Use the interior-angle formula for a regular n-gon: interior = ((n−2)/n)·180°. Set equal to 135°:

((n−2)/n)·180 = 135 → (n−2)/n = 135/180 = 3/4 → 4(n−2) = 3n → n = 8.

So the polygon has 8 sides (a regular octagon).