Step 1
Write the formula for volume of a cone
[tex]\begin{gathered} \text{Volume of a cone = }\frac{1}{3}\text{ }\pi r^2h \\ \text{Height h = 9cm} \\ \text{Radius r = 3cm} \end{gathered}[/tex][tex]\begin{gathered} \text{Volume of a cone = }\frac{1}{3}\text{ x }\pi x3^2\text{ x 9} \\ \text{ = }\frac{9\text{ x 9}\pi}{3} \\ \text{ = }\frac{81\pi}{3} \\ \text{ = 27}\pi cm^3 \end{gathered}[/tex]
