Question

A family purchases a light sphere to be used out on their patio. The diameter of the sphere is 20 in.

What is the volume of the light sphere?

Use 3.14 for pi.

Enter your answer as a decimal in the box. Round only your final answer to the nearest hundredth.

Answer 1

V ≈ 4186.67

Explanation:

The formula for the volume of a sphere is
`(1)/(6) \pi d^(3)` where,

d = diameter

`\pi` = 3.14....

We know that the diameter of the light sphere is 20in and so we plug it into d to get our answer.

`(1)/(6) (3.14)(20)^(3)=4186.666667`

Answer 2

V = 4186.67 in^3

Explanation:

The volume of a sphere is given by

V = 4/3 pi r^3

We need to know the radius

r = d/2 = 20/2 = 10

V = 4/3 (3.14) (10)^3

V =4186.66666666

Rounding to the nearest hundredth

V = 4186.67 in^3