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What is the measure of an interior angle of a regular decagon?

18°

144°

180°

36°

User Saad Mirza
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2 Answers

4 votes

Answer:

Explanation:

A decagon has 10 sides so its interior angles add up to 180(10) - 360 = 1440 degrees. Therefore, on average, each interior angle is 144 degrees and each exterior angle is 36 degrees. The sum of the exterior angles is 10 x 36 = 360 degrees.

User Procleaf
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7.1k points
3 votes

Answer: 180

Explanation:

User Fixpoint
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