Each interior angle of a regular polygon is 108°. How many sides has it?
MATHEMATICS
WAEC 2004
Each interior angle of a regular polygon is 108°. How many sides has it?
- A. 5
- B. 7
- C. 9
- D. 14
Correct Answer: A. 5
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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