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Mathematics for IGCSE & O level - Mensuration (Section 7 - No. 25)

What is the volume of a cone with a radius of 3 cm and a height of 5 cm?
47.1 cm³
141.4 cm³
15.7 cm³
52.6 cm³

解释

V = 1/3πr²h = 1/3 * π * 3² * 5 ≈ 47.1 cm³

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