Which correctly describes a cross section of the right rectangular prism if the base is a rectangle measuring 15 inches by 8 inches? check all that apply. - a cross section parallel to the base is a rectangle measuring 15 inches by 8 inches. a cross section parallel to the base is a rectangle measuring 15 inches by 6 inches. a cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 6 inches by 15 inches. a cross section perpendicular to the base through the midpoints of the 8-inch sides is a rectangle measuring 4 inches by 15 inches. a cross section not parallel to the base that passes through opposite 6-inch edges is a rectangle measuring 6 inches by greater than 15 inches.