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put the total surface of area formula of voulme of cube
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Step-by-step explanation:
Total surface area of the hemisphere =462cm^2
Total surface area of the hemisphere =2πr ^2
⇒462=3πr ^2
⇒r=7 cm
Volume of hemisphere = 2/3 πr ^3
V= 2/3 × 22/7 ×7 ^3
V=718.67cm ^3
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