The volume of a sphere is 
Find its radius and hence its surface area.
Volume of sphere = 38808cm3
r3 = 441 × 21
r3 = 21 × 21 × 21
r = 21cm
surface area = 4πr2
= 
= 5544cm3
2
The volume of a sphere is Find its radius and hence its surface area.
Volume of sphere = 38808cm3
r3 = 441 × 21
r3 = 21 × 21 × 21
r = 21cm
surface area = 4πr2
=
= 5544cm3