GMAT Quantitative Reasoning Practice Test 3

You can start with the length. Height $=6.5\times 3.4$ is approximately 22 .
The Volume of the cylinder is the area of its face $\times$ its height. Area of face $=\mathit{\pi }{\mathit{r}}^2$.
$\mathit{V}$ is approximately $36\times 22=792$ and the best answer is .