Marylou is blowing up a beach ball. The package says that the ball has a diameter of 18 inches. What is the volume of the beach ball when it is completely full?
Use the formula below to find the volume of the beach ball. Remember that the radius is one-half of the diameter.
V=3/4 pi r^3
=4/3(3.14)(9 in)^3
=3,052.08
Therefore, the beach ball has a volume of 3,052.08 cubic inches when it is completely full.