Respuesta :

Answer:

see explanation

Step-by-step explanation:

To calculate volume (V) we require to find the radius r

Given SA = 100π, then

4πr² = 100π ( divide both sides by 4π )

r² = [tex]\frac{100\pi }{4\pi }[/tex] = 25 ( take the square root of both sides )

r = [tex]\sqrt{25}[/tex] = 5

Hence

V = [tex]\frac{4}{3}[/tex]π × 5³

   = [tex]\frac{4}{3}[/tex]π × 125

   = [tex]\frac{4(125)}{3}[/tex] π

   = [tex]\frac{500}{3}[/tex] π ft³