no way to tell. All we know is that the box is 4*6.5 = 26 cm high
Now, if the box is a cube, then its area is 6*26^2
the volume of the 64 balls is 64 * π/6 * 6.5^3
subtract that from the volume of the box to get the empty space.
Tennis balls are stacked four high in a rectangular prism package. The diameter of one ball is 6.5 cm.
a) What is the minimum amount of material needed to make the box?
b) Determine the amount of empty space in the rectangular prism.
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