Find the volume of a sphere that has a surface area of

Question

16pi sq. in.

Answer 1

surface area of sphere is s=4pir^2

Substitute 16 pi sq-in. for s

4pir^2=16pi

r^2=4

r=2 in.

Formula for volume of the sphere is V=(4/3)pir^3

Substitute 2 in. for r

 

V=(4/3)pi(2)^3    

   =(4/3)pi(2)^3     

    =32/3 pi in.^3

 

 

Comments

thank you have helped so much