Question

The volume of a sphere is 4851 $c{m}^3$. Find its curved surface area.

Answer 1

Volume of sphere =4/3πr³
=4851
4/3πr³ = 4851
r³=$4851\times \frac{3}{4}\times \frac{1}{\pi }$
r³=1157.625
r=10.5
surface area of sphere=4πr²
=$4\times \frac{22}{7}\times 10.5\times 10.5$
=1386 sq.m