A storage unit that has a square base has a volume of 480 ft3. The height of the unit is 7.5 feet. A prism has a length of l, width of w, and height of 7.5 feet. What is the area of the square base? The area of the square base is feet2. What is the length and width of the storage unit? The length of the unit is feet. The width of the unit is feet.