Home » Each interior angle of a regular polygon is 108°. How many sides has it?

Each interior angle of a regular polygon is 108°. How many sides has it?

Each interior angle of a regular polygon is 108°. How many sides has it?

  • A.
    5
  • B.
    7
  • C.
    9
  • D.
    14
Correct Answer: Option A
Explanation

The exterior angle of the polygon = 180 – 108 = 72°. The sum of exterior angle of the regular polygon = 360°
The number of sides (=frac{360}{72}=5)

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