0580/42 May/Jun 2025, Question 6: Compound Measures
Cambridge IGCSE Mathematics 0580 · Paper 42 (Extended) · Calculator · 3 marks
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The question, in short
Find the mass of a wooden cone with base radius 4 cm and height 12 cm, given wood density 0.74 g/cm³ and Density = Mass ÷ Volume.
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Solution · 3 marks
- 1Volume = 1/3 × π × 4² × 12 = 64π = 201.06… cm³
- 2Mass = 0.74 × 201.06… = 148.78… ≈ 149 g
Answer149 or 148.7 to 148.8…
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