A pyramid has a length of 3 inches, width 5 inches, and height 8.42 inches. what is the volume of the pyramid?

To find the volume of a pyramid, you can use the formula:

Volume = (1/3) * base area * height

First, calculate the base area of the pyramid. Since the base is a rectangle, you can use the formula for the area of a rectangle:

Base area = length * width
Base area = 3 inches * 5 inches
Base area = 15 square inches

Now, plug in the values for base area and height into the volume formula:

Volume = (1/3) * 15 square inches * 8.42 inches
Volume = (1/3) * 126.3 cubic inches
Volume = 42.1 cubic inches

Therefore, the volume of the pyramid is 42.1 cubic inches.