0580/12 May/Jun 2023, Question 17: Interior and Exterior Angles of Polygons
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Calculator · 2 marks
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The question, in short
Calculate the size of one interior angle of a regular polygon with 15 sides.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1Exterior angle = 360 ÷ 15 = 24°
- 2Interior angle = 180 − 24 = 156°
Answer156
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