What is the volume of a sphere of radius 21 cm? (Take π = 22/7)

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• A 47823 cm³
• B 38808 cm³
• C 34508 cm³
• D 43708 cm³

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Answer: B. 38808 cm³

Volume = 4/3 × π × r³ = 4/3 × 22/7 × 21 × 21 × 21 = 38808 cm³.

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