0580/12 Oct/Nov 2021, Question 21: 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 a single interior angle in a regular polygon with 10 sides.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1Exterior angle = 360 ÷ 10 = 36°
- 2Interior angle = 180 − 36 = 144°
Answer144
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Also searched as: 0580/12/O/N/21 · 0580_w21_qp_12 · 0580 w21 12 · question 21.
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