Question

If the surface are of a sphere is 2826sq cm, then find its volume

Answer 1

Surface area of sphere= 2826
4πr2=2826
4×3.14×r2=2826
12.56×r2=2826
r2=2826/12.56
r2=225
r=√225
r=15cm
volume of sphere=4/3πr3
=4/3×3.14× (15)3
4/3×3.14×3375
=42390/3
=14130cm3