Q. 14

# 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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