Answer
$V =288\pi \text{ cubic meters} \approx 905\text{ cubic meters}$
Work Step by Step
RECALL:
The volume $V$ of a sphere is given by the formula
$V=\frac{4}{3}\pi{r^3}$
where r = radius.
The given sphere has: r = 6 meters.
Use the formula above to obtain:
$V=\frac{4}{3} \pi(6^3)
\\V= \frac{4}{3}\pi(216)
\\V =288\pi \approx 905 \text{ cubic meters}$