given data:
diameter of cylinder = 65 mm
radius of cylinder = 65/2 =32.5
height of cylinder = 98 mm
To find: voulem of the cylinder
use the formula,
[tex]V=\pi r^2h[/tex]thus
[tex]\begin{gathered} V=\pi\cdot32.5^2\cdot98 \\ =325029.25 \end{gathered}[/tex]The voulme of the cylinder is 325029.25 mm cube.