JSCE Mathematics 2022 Objective — Question 25
Question 25 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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The sum of the interior angles of a polygon is 1980°. How many sides has the polygon?
- A. 11
- B. 13Correct
- C. 15
- D. 17
Explanation
(n - 2) × 180 = 1980, n - 2 = 11, n = 13.
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