The volume of a cone is given by the following formula:
[tex]V=\frac{1}{3}\pi r^2h[/tex]
where,
r: radius of the base = 9 cm
h: height = 12 cm
Replace the previous values of the parameters into the formula for V and simplify:
[tex]\begin{gathered} V=\frac{1}{3}\pi(9cm)^2(12cm) \\ V=324\pi cm^3 \end{gathered}[/tex]
Hence, the volume of the cone is 324pi cm^3
