The Polygon Angle-Sum Theorems | Baamboozle - Baamboozle

The Polygon Angle-Sum Theorems

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What is the sum of the interior angles of a decagon (10 sides)?

(10−2)×180=8×180=1440 ∘

Find the measure of each interior angle of a regular hexagon.

( 6 − 2 ) × 180 = 720 ∘ each angle = 720 ÷ 6 = 120 ∘ 720÷6= 120 ∘

What is the sum of the exterior angles of a 15-gon?

Always 360

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