Question

A water storage tank is in the shape of a hemisphere​ (half a​ sphere). If the radius is 20 ​ft, approximate the volume of the tank in cubic feet.

Answer 1

The approximate volume of the tank is
`V=16,747\ ft^(3)`

Explanation:

we know that

The volume of a hemisphere (water storage tank) is equal to

`V=(4)/(6)\pi r^(3)`

we have

`r=20\ ft`

assume

`\pi =3.14`

substitute

`V=(4)/(6)(3.14)(20)^(3)`

`V=16,747\ ft^(3)`