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JSCE Mathematics 2023 Theory — Question 13

Question 13 of 17 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2023 Theory paper, with the correct answer and a full explanation.

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(b) How many sides does a polygon with the total angle of 2520° has?

Model answer

Sum of interior angles = (n − 2) x 180° (n − 2) x 180 = 2520 n − 2 = 14, so n = 16 sides.

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