Final answer:
To calculate the volume of the prism, determine the area of the rectangular cross section, then multiply by the height of the prism, which is 7mm.
Step-by-step explanation:
To find the volume of the prism with a rectangular cross section parallel to the base, we use the formula for the volume of a prism, which is V = Ah, where V is the volume, A is the area of the cross section, and h is the height of the prism. The provided information indicates that the height of the prism is 7mm. However, the area of the cross section is not given directly; it must be calculated or provided. If we had the measurements of the cross section, we would multiply the length times the width to get the area in square millimeters. Once the area is known, we would then multiply by the height (7mm) to find the volume of the prism.