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WAEC Mathematics 1994 Question 36

Question 36

Angles and Polygons

The sum of the angles of a regular polygon is 2520°. How many sides does the polygon have?

  1. A.20
  2. B.18
  3. C.17
  4. D.16
  5. E.15.
Show the answer and explanation

Answer: D (16)

Explanation

(n − 2) × 180° = 2520°, so n − 2 = 14 and n = 16.