Question

Help geometry?????????????????????

Answer 1

The volume of a sphere is $V = 4 * \pi * r^{2}$
Substitute the volume in:
$100 \pi = 4 \pi r^{2}$
$r^{2}$
$r = 5$

Take the radius that we just calculated and use the volume formula as follows:
$V = \frac{4}{3} \pi r^{3}$
$V = \frac{4}{3} \pi * ( 5^{3} )$
$V = \frac{4}{3} \pi (125)$
$V = \frac{500}{3} \pi = 166 \frac{2}{3} \pi ft^{3}$