Mathematics

Volume of Sphere

Calculate volume of a sphere.

Volume = (4/3)πr³

Formula Explanation

Volume is four-thirds pi times the cube of the radius.

Variables Explained

r = radius.

Solved Example

Radius = 3 cm. Volume?
(4/3)π × 27 = 36π cm³.

Exam Tip

Remember the fraction 4/3; it is often forgotten.