Write down the equation for calculating the volume of a sphere. 3 a P Q d ϕ r sin. V 4 3 p r 3.
Volume of the sphere Sum of volumes of all pyramids.
In this equation V represents volume and r represents the radius of the sphere. So equation 2 becomes. The volume of a sphere is equal to four-thirds of the product of pi and the cube of the radius. In this lesson we derive the formula for finding the volume of a sphere.