To calculate the volume of a cylinder, you can use the formula:
\[ V = \pi r^2 h \]
where:
- \( V \) is the volume,
- \( r \) is the radius,
- \( h \) is the height.
Here, the radius \( r = 5 \) cm and the height \( h = 20 \) cm. Plugging in these values:
\[ V = \pi (5)^2 (20) \] \[ V = \pi (25)(20) \] \[ V = \pi (500) \] \[ V = 500\pi \]
Thus, the volume of the cylinder is:
500π cm³.