How many sides has a regular polygon whose interior angles are 120°each

How many sides has a regular polygon whose interior angles are 120°each
  • A.
    4
  • B.
    5
  • C.
    6
  • D.
    3
Correct Answer: Option C
Explanation

Each exterior angle = 180 − 120=60
Exterior angle =360/n
60 = 360/n
n =360/6
= 6

There is an explanation video available below.

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