Question 967665
if the box has a square end of 18 inches on each side, then the girth of the box will be 4 * 18 = 72 inches.


the girth winds up being the perimeter of the end of the box.


that means the length has to be 108 - 72 = 36 inches.


the volume of the box will be 36 * 18^2 = 11,664 cubic inches.