WAEC Mathematics 2012 Objective — Question 40
Question 40 of 50 from the West African Examinations Council (WAEC) Mathematics 2012 Objective paper, with the correct answer and a full explanation.
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The sum of the interior angles of a regular polygon is 1800°. How many sides has the polygon?
- A. 16
- B. 12Correct
- C. 10
- D. 8
Explanation
Sum of interior angles = (n−2)×180° = 1800°. n−2 = 10. n = 12 sides.
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