Question

Find the volume of this sphere.Use 3 for TT..V ?20 ftV ==Tr3Hint: The radius (r) is1/2 of the diameter.

Answer 1

From the problem, the diameter of the sphere is 20 ft.

Note that radius is half of diameter, so the radius will be r = 20/2 = 10 ft

Using the volume formula of a sphere.

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

where π = 3

$\begin{gathered} V=\frac{4}{3}(3)(10)^3 \\ V=4000 \end{gathered}$

The answer is 4000 ft^3