0580/42 May/Jun 2026, Question 6: Perimeter of a semicircle
Cambridge IGCSE Mathematics 0580 · Paper 42 (Extended) · Calculator · 3 marks
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The question, in short
Find the perimeter of a semicircle whose diameter is 15.8 cm.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 1Curved part = ½ × π × 15.8 = 24.818…
- 2Perimeter = 24.818… + 15.8
- 3= 40.6 cm
Answer40.6 or 40.61 to 40.62
Stuck on a step? Read the free lesson: Circumference and Area of a Circle
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