Question

If the hemisphers has a radius of 3 feet, how many cubic feet of water can the water tank hold?

Answer 1

Answer:

$volume \ of \ hemisphere = \frac{2}{3} \pi r^3 = \frac{2}{3}\pi \cdot (3)^3 = \frac{2}{3} \pi 27 = 2\pi \cdot9 = 18\pi cubicfeet$