The base area of each box (regular and tall boxes) = 5 ft².
The volume of the regular box = 40 ft³.
The height of the regular box is given by:
The tall box is 3 feet longer than the regular box.
Hence, the height of the tall box = 8 + 3 = 11 ft.
The volume of the tall box is given by:
Therefore, the volume of the tall box is 55 ft³