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Volume of the hemisphere = (2/3)πr³, Volume of the cylinder = πr²h, Given: r = 6 cm, height of the cylinder = 6 cm. Volume of the hemisphere = (2/3)π(6)³ = 432π cm³. Volume of the cylinder = π(6)²(6) = 216π cm³. Remaining volume = Volume of the hemisphere - Volume of the cylinder Remaining volume = 432π - 216π = 216π cm³. Correct option: A) 216π cm³.
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