Find the volume of the cone. Round your answer to the nearest tenth.
Please help!!

Answer:
[tex]V=36.8\pi[/tex] or [tex]V=115.4[/tex] (π ≈ 3.14) or [tex]V=115.5[/tex] (π = 3.141592···)
Step-by-step explanation:
[tex]r=\frac{1}{2} d[/tex]
[tex]r=\frac{1}{2} (7)[/tex]
[tex]r=\frac{7}{2}[/tex]
[tex]V=\frac{1}{3} \pi r^2h[/tex]
[tex]V=\frac{1}{3} \pi (\frac{7}{2} )^2(9)[/tex]
[tex]V=\frac{1}{3} \pi (\frac{49}{4} )(9)[/tex]
[tex]V=\frac{1}{3} \pi (\frac{441}{4} )[/tex]
[tex]V= \frac{147}{4}\pi[/tex]
[tex]V=36.75\pi[/tex]