Question

Please help me out please please !!!!!

Answer 1

The surface area of a sphere is given by

`S = 4\pi r^2`

We deduce

`r = \sqrt{(S)/(4\pi)}`

So, in your case, the radius is

`r = \sqrt{(100\pi)/(4\pi)}=√(25)=5`

The volume of a sphere is given by

`V=(4)/(3)\pi r^3`

So, we have

`V = (4)/(3) \pi 5^3 = (500)/(3)\pi`