A slice is made parallel to the base of a right rectangular pyramid, as shown.

What is the area of the resulting two-dimensional cross-section?

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in²

Rectangular pyramid intersected horizontally by a rectangle. The front edge of the base of the pyramid is labeled 5 inches, and the right edge is labeled 4 inches. The height of the pyramid is labeled 7 inches. The part of the larger rectangle that intersects the pyramid is a smaller gray rectangle. The front side of the smaller rectangle is labeled 2.5 inches, and the right side is labeled 2 inches.