Find the number of sides of a regular polygon if one interior angle is 140 degrees. 8 9 10

asked Aug 24, 2019 131k views

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Find the number of sides of a regular polygon if one interior angle is 140 degrees.

8
9
10

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4 votes

The sum of the supplementary exterior angles is 360 degrees.

180 - 140 = 40

360/40 = 9

A nonagon.

Answer: 9

Rafael T answered Aug 30, 2019

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