Question

Two spherical balloons are filled with water. The first balloon has a radius of 3 cm, and the second has a radius of 6 cm.

How much more water is in the larger balloon than in the smaller balloon?
Use 3.14 to approximate pi, and express your answer in the hundredths.


_____cm3


Thanks to whoever helps! :)

Answer 1

In order to answer the question, you have to know the formula of the volume of a sphere.
Volume = (4/3) * pi * r^3

Sphere 1 = (4/3) * 3.14 * 3^3
Sphere 1 = 113.04 cm ^3

Sphere 2 = (4/3) * 3.14 * 6^3
Sphere 2= 904.32 cm^3

Difference = Sphere 2 - Sphere 1
Difference = 904.32 - 113.04
Difference = 791.28 cm^3

The larger balloon has 791.28 cm^3 more water than the smaller one.