Which formula do you use to find the volume of a cylinder?

To find the volume of a cylinder, the correct formula is derived from the relationship between the cylinder's base area and its height. The volume is essentially the area of the circular base multiplied by the height of the cylinder. The area of a circle is given by πr², where r is the radius of the base. When this area is multiplied by the height (h) of the cylinder, you obtain the volume. Therefore, the formula is πr²h.

The other options represent different calculations related to the cylinder but do not accurately provide the volume. For instance, one option involves the circumference of the base, which does not relate to the volume directly. Another option incorrectly adds various components that do not correspond to a volume calculation. Thus, πr²h correctly encapsulates the volume concept by combining the area of the base with the height.