The volume of a pyramid is given by the formula V = (1/3) * base area * height.
First, calculate the base area. Since the base is a square with sides of 112 feet, the base area is 112 * 112 = 12544 square feet.
Next, plug in the values into the volume formula:
V = (1/3) * 12544 * 71
V = (1/3) * 889024
V = 296341.33 cubic feet
Therefore, the volume of the pyramid at the Louvre Museum is approximately 296341.33 cubic feet.