Verified Answer :

To find the volume of a sphere, we use the formula:

\(\[ V = \frac{4}{3} \pi r^3 \]\)

where \(\( V \)\) is the volume and \(\( r \)\) is the radius of the sphere.

Given that the diameter of the sphere is 12 ft, we first need to find the radius. The radius \(\( r \)\) is half of the diameter:

\(\[ r = \frac{\text{diameter}}{2} \]\)
\(\[ r = \frac{12 \text{ ft}}{2} \]\)
\(\[ r = 6 \text{ ft} \]\)

Now we substitute the radius back into the volume formula:

\(\[ V = \frac{4}{3} \pi (6 \text{ ft})^3 \]\)

Next, we need to calculate \(\( (6 \text{ ft})^3 \)\):

\(\[ (6 \text{ ft})^3 = 6 \text{ ft} \times 6 \text{ ft} \times 6 \text{ ft} = 216 \text{ ft}^3 \]\)

Now we substitute \(\( 216 \text{ ft}^3 \)\) into the volume formula:

\(\[ V = \frac{4}{3} \pi (216 \text{ ft}^3) \]\)

Simplifying further:

\(\[ V = \frac{4}{3} \pi \times 216 \text{ ft}^3 \]\)
\(\[ V = \frac{4 \times 216 \pi}{3} \text{ ft}^3 \]\)
\(\[ V = \frac{864 \pi}{3} \text{ ft}^3 \]\)
\(\[ V = 288 \pi \text{ ft}^3 \]\)

Thus, the exact volume of the sphere is:

\(\[ 288 \pi \text{ ft}^3 \]\)