Q4 of 32 Page 123

Find the surface area of a sphere, if its volume is 38808 cubic cm. (π = 22/7)

Given: Volume of sphere = 38808 cm3

Volume of sphere is given by,


Volume =


Substituting value of volume of sphere in above equation, we get


⇒


⇒


⇒


⇒ r3 = 9261


⇒


⇒ r = 21


Surface area of sphere is given by,


Surface area = 4πr2


⇒ Surface area =


= 5544


Thus, surface area of the sphere is 5544 cm2.


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