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Mathematics for IGCSE & O level - Mensuration (Section 10 - No. 43)

If the volume of a sphere is 288π cm³, what is its radius?
6 cm
9 cm
3 cm
4 cm

解释

Volume = (4/3)πr³. 288π = (4/3)πr³. r³ = 216. r = 6 cm

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