The volume of a sphere is 4851 cm3. Find its curved surface area.

The volume of the sphere = 4851 cm3


Let the radius of the sphere = r


As,


Volume of the sphere = 4851 cm3


4/3πr3 = 4851




r3 = 92618


r = 3√92618


r = 212cm


Now,


The Curved surface area of the sphere = 4πr2


= 4 × 22/7 × 21/2 × 21/2


= 1386 cm2


So,


The curved surface area of the sphere is 1386 cm2


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