How is the volume of a cylinder calculated?

The volume of a cylinder is calculated using the formula which incorporates the area of the base and the height. The base of a cylinder is a circle, and the area of a circle is given by the formula π(radius)². This means you first calculate the area of the circular base. Once you have the area, to find the total volume of the cylinder, you multiply this area by the height of the cylinder. Therefore, the correct calculation method is to take the area of the circular base and multiply it by the height of the cylinder, which aligns perfectly with the selected answer.

This approach highlights the cylindrical shape's dependency on both its base and its height, giving a clear understanding of how three-dimensional space is occupied by the object. Other options provided do not accurately represent the method for calculating the volume of a cylinder.