0580/33 May/Jun 2026, Question 19: Interior and Exterior Angles of Polygons
Cambridge IGCSE Mathematics 0580 · Paper 33 (Core) · Calculator · 2 marks
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The question, in short
Find the size of one interior angle of a regular 12-sided polygon.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1Exterior angle = 360 ÷ 12 = 30°
- 2Interior angle = 180 − 30
- 3= 150°
Answer150
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