A slice of cheese is cut from a wheel of parmesan, and the wedge approximates the shape of a rectangular pyramid. Its base is 4 cm wide and 9 cm long. The wedge is 21 cm tall. What is the volume of the piece of cheese?(1 point) cm3.

The volume of a rectangular pyramid is given by the formula V = (1/3) * base area * height.

First, calculate the base area:
Base area = length * width
Base area = 9 cm * 4 cm
Base area = 36 cm^2

Now, plug in the base area and height into the volume formula:
V = (1/3) * 36 cm^2 * 21 cm
V = (1/3) * 756 cm^3
V = 252 cm^3

Therefore, the volume of the piece of cheese is 252 cm^3.