Calculate the surface area of a sphere whose volume is 4851 cm sq.
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volume of a sphere=4851 cm³
⇒(4/3)×πr³=4851
⇒r³=4851×(3/4)×(7/22)
⇒r³=441×(3/4)×(7/2)
⇒r=∛[(441)×(3/4)×(7/2)]
⇒r=21/2
surface area=4πr²
=4×(22/7)×(21/2)×(21/2)
=1386 cm²
⇒(4/3)×πr³=4851
⇒r³=4851×(3/4)×(7/22)
⇒r³=441×(3/4)×(7/2)
⇒r=∛[(441)×(3/4)×(7/2)]
⇒r=21/2
surface area=4πr²
=4×(22/7)×(21/2)×(21/2)
=1386 cm²
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