Question

find the volume of sphere whose surface area is154 cm square

Answer 1

Answer:

We know that

Surface area of sphere= 4π$r^{2}$

154= 4*22/7*r*r

154*7/4*22 = r*r

12.25= r*r

3.5= r

Volume of sphere= 4/3*$\pi r^{3}$

=4/3*22/7*3.5*3.5*3.5

=179.67 $cm^{3}$