Aright rectangular pyramid is sliced parallel to the base, as shown. what is the area of the resulting two-dimensional cross-section? 15 cm² 18 cm² 25 cm² 50 cm² rectangular pyramid intersected horizontally by a rectangle. the base of the pyramid measures 10 centimeters by 6 centimeters, and the height is 5 centimeters. the part of the rectangle that intersects the pyramid is a gray rectangle. the smaller rectangle measures 5 centimeters by 3 centimeters.