Let r = radius of the hard rubber ball.
Because the circumference of the ball is 13 inches, therefore
2πr = 13
r = 13/(2π) = 2.069 in
In order to fit the ball into a cube-shaped box with integer dimensions, each side of the box should measure 3 inches (the next integer greater than 2.069).
The volume of the cube-shaped box is 3³ = 27 in³.
Answer: The volume is 27 in³.
