Question

A hard candy has a radius of 9 mm. The candy has a spherical soft center with a radius of 6 mm, with a hard shell surrounding it.

What is the volume of the hard shell?
Use 3.14 to approximate pi and express your final answer in hundredths.

Answer 1

Find the volumes of the two spheres.

Answer 2

V = 4/3 * pi * r^3

V = 4/3 * 3.14 * 9^3



V = 4/3 * pi * r^3

V = 4/3 * 3.14 * 6^3

Answer 3

Simplify and subtract them.

Answer 4

2147.76?

Answer 5

Yep!

Answer 6

That's our answer.