Answer:
512 cube inches
Explanation:
The radius of volleyballs is 4 inches, thus;
diameter of the balls = 2 x radius
= 2 x 4
= 8
The diameter of each ball is 8 inches.
Since the box has the shape of a cube, the smallest box that can hold a volleyball would have its dimensions equal to the diameter of the balls.
So that for the cube,
length = width = height = 8 inches
volume of a cube =

volume of the smallest box =

= 512 cube inches
The volume of the smallest box that can hold a volleyball is 512 cube inches.