What is the volume of the rectangular pyramid? 18mm, 8mm, and 5 mm?

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

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

The base area of a rectangular pyramid is the area of the base rectangle, which is length times width. In this case, the base rectangle has dimensions of 18mm by 8mm.

Base area = 18mm * 8mm = 144mm^2

Now, the height of the pyramid is given as 5mm.

Volume = (1/3) * 144mm^2 * 5mm
Volume = (1/3) * 720mm^3
Volume = 240mm^3

Therefore, the volume of the rectangular pyramid is 240 cubic millimeters.