1. Find the sum of the measures all the exterior angles of a decagon .
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By: anil on 05 May 2019 02.09 am
Sum of all interior angles of a polygon having $$n$$ sides = $$(n - 2) imes 180$$° Number of sides of decagon, $$n = 10$$ => Sum of interior angles = $$(10 - 2) imes 180$$° = $$8 imes 180 = 1440$$° => Ans - (C)
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