If one exterior angle in a regular polygon is 120°, then what kind of polygon is it?

Question

Sanchez

Mathematics

1 January, 19:34

If one exterior angle in a regular polygon is 120°, then what kind of polygon is it?

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Answers (1)

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Mustache · Answer 1

interior angle = 180-exterior = 180-120 = 60°

using

[ (n-2) 180]:n = 60

(n-2) 180 = 60n

180n - 360 = 60n

180n - 60n = 360

120n = 360

n = 360:120 = 3

it's a triangle