The volume of a cylinder is the amount of space it occupies, calculated using the formula V = \pi r^2 h . In this formula, V represents the volume, r is the radius of the circular base, and h is the height of the cylinder. The constant \pi (approximately 3.14) is used to relate the diameter of the circle to its circumference. To find the volume, first measure the radius and height of the cylinder. Then, square the radius, multiply it by \pi , and finally multiply by the height. This calculation helps in various applications, such as determining the capacity of containers or the amount of material needed for construction.