It looks like you're referencing the formula for the volume of a cylinder. The formula is typically written as:
\[ V = \pi r^2 h \]
where:
- \( V \) is the volume of the cylinder,
- \( r \) is the radius of the base of the cylinder,
- \( h \) is the height of the cylinder, and
- \( \pi \) (pi) is a mathematical constant approximately equal to 3.14159.
If you have specific values for \( r \) and \( h \), you can substitute them into the formula to calculate the volume of the cylinder. Let me know if you need help with a specific example!