Question

A small plastic ball has a diameter of 8 centimeters. What is the volume of the ball

Answer 1

Given:

Diameter of ball = 8 cm

To find:

The volume of the ball.

Solution:

We know that the radius of sphere is half of is diameter.

It is given that the the diameter of ball is 8 cm. So, the radius of the ball is:

`r=(8)/(2)`

`r=4`

The radius of the ball is 4 cm.

The volume of a sphere is:

`V=(4)/(3)\pi r^3`

Where r is the radius of the sphere.

Putting
`\pi = 3.14, r=4` in the above formula, we get

`V=(4)/(3)(3.14)(4)^3`

`V=(4)/(3)(3.14)(64)`

`V=267.946667`

`V\approx 267.95`

Therefore, the volume of the ball is about 267.95.