We can find the volume of a sphere by a formula:
4/3 π r³ where r is the radius. So if radius is one and π is 3.14, then the formula will look like this:
4/3 * 3,14 * 1³ =
= 4/3 * 3,14 * 1 =
= 4/3 * 3,14 =
= 1,33 * 3,14 =
= 4,1762 ≈
≈ 4,2 (after rounding to the nearest tenth)