Find the volume for the cylinder with the given measurement. r = 2, h = 3

The volume of any prism is equal to the cross-sectional area multiplied by the height. Since a cylinder is effectively a circular-prism, with the cross-sectional area equal to the area of a circle (πr²), the formula for the volume can be derived:

Volume = cross-sectional area * height
Volume = πr² * height
V = πr²h

Now the figures just need to be substituted into the formula to calculate the volume:

V = π * (2)² * 3
   = π * 4 * 3
   = 12π
   = 37.6991118431
   ≈ 37.7 units³ (3sf)