What is the formula for calculating the volume of a cylinder?

The formula for calculating the volume of a cylinder is expressed as V = πr² x H. This formula is derived from the geometric principles of a cylinder, where the area of the circular base is given by πr² (pi times the radius squared) and the height (H) represents the height of the cylinder. By multiplying the base area by the height, you determine the entire volume contained within the cylinder.

The rationale behind this formula lies in the notion that the volume is essentially the amount of space the cylinder occupies. Each cross-section of the cylinder is a circle, and by extending that circular area vertically across the height of the cylinder, you encompass the entire three-dimensional space.

Options that propose different equations do not accurately reflect the geometrical properties of a cylinder. For instance, adding or subtracting elements from the base area, or using multiplication in different contexts, may misrepresent the relationship necessary for volume calculation. Thus, V = πr² x H remains the correct and universally accepted formula for determining a cylinder's volume.