Question

if the surface area of sphere is 616cm square ,the volume of sphere is?

Answer 1

S.a of sphere = 616 cm square
4πr square=616 cm sq
πr square=616 /4
r square= 154*7/22
r square = 49
r =√49
r=7 cm

Volume of sphere=4/3*πr ^3
Volume of sphere=4/3*22/7*7*7*7
Volume of sphere= 88/21*343
Volume of sphere=16.33*88
Volume of sphere= 1437.33cm cube
So volume of sphere is 1437.33cm cube

Answer 2

SA of sphere=616 cm2
4*22/7*r*r=616 cm2
88/7*r*r=616
r2=616*7/88
r2=49
r=7cm
V of sphere=4/3*22/7*r*r*r
=4/3*22/7*49*7 =1437.33 cm3