Question

The volume of a sphere is 2,143.572,ft cubed. To the nearest foot​, what is the radius of the​ sphere? Use 3.14 for pi.

Answer 1

Volume of a sphere is defined:

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

Solve for radius.

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

Now put in the data.

`</p><p>r=(3\cdot2143.572)/(4\cdot3.14) \\ \\</p><p>r=(6430.716)/(12.56)\approx\boxed{30010}</p><p>`

The radius of the sphere is 30010ft.

Hope this helps.

r3t40