Question

what is the angle sum of a convex polygon with number of side 10​

Answer 1

A regular decagon has 10 equal-length sides and equal-measure interior angles. Each angle measures 144° and they all add up to 1,440° . An irregular decagon has sides and angles that are not all equal or congruent. A convex decagon bulges outward, with no interior angle greater than 180°

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Answer 2

Answer:

Using the formula (n - 2 ) x 180°,

n = 10

(10-2) x 180 = 1440°