Question

The volume of the sphere is ____ π cubic feet.

Answer 1

Solution

Step 1

Write the expression for the volume of a sphere

$V\text{ = }\frac{4}{3}\pi r^3$

Where r = 21ft

Step 2

Substitute in the values and find the volume.

$\begin{gathered} V\text{ = }\frac{4}{3}\times\pi\times21^3 \\ V=\text{ }21,348\pi ft^3 \end{gathered}$

Hence the volume of the sphere = 21,348πft³