0580/12 May/Jun 2026, Question 23: Circumference and Area of a Circle
Cambridge IGCSE Mathematics 0580 · Paper 12 (Core) · Non-calculator · 2 marks
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The question, in short
Given a circle's circumference of 18π cm, work out its radius.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 12πr = 18π
- 2r = 18 ÷ 2 = 9 cm
Answer9
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