Given:
The radius , r=20 ft.
The height , h=23 ft.
The volume of the cylinder can be calculated as,
![\begin{gathered} V=\pi r^2h \\ =\pi*20^2*23 \\ =28902.65ft^2 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/c0otbs6s96ng7gkkq9287zd8iqc1911wy1.png)
Therefore, the volume of the cylinder is 28902.65 sq.ft.
The volume of the cone can be calculated as,
![\begin{gathered} V=(1)/(3)\pi* r^2h \\ =(1)/(3)\pi*20^2*23 \\ =9634.22ft^2 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/8upudn0ya6l9ff3hqi4ylxrl7vyxhg0fkn.png)
Therefore, the volume of the cone is 9634.22 sq.ft.