4024/12 Oct/Nov 2024, Question 15: Interior and Exterior Angles of Polygons
Cambridge O Level Mathematics 4024 · Paper 12 (Non-calculator) · Non-calculator · 2 marks
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The question, in short
A regular polygon has each interior angle equal to 160°; determine how many sides it has.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1Exterior angle = 180 − 160 = 20°
- 2Number of sides = 360 ÷ 20 = 18
Answer18
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