0580/42 Feb/Mar 2025, Question 12: Volume and Surface Area of a Cone
Cambridge IGCSE Mathematics 0580 · Paper 42 (Extended) · Calculator · 2 marks
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The question, in short
Calculate the total surface area of a cone with sloping edge 12 cm and base radius 5 cm.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 1Curved surface = π × 5 × 12 = 60π
- 2Base = π × 5² = 25π
- 3Total = 85π = 267.03… ≈ 267 cm²
Answer267 or 267.0 to 267.1
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