A square pyramid cut in half. the top half has a square base of 15 by 15 feet, and a triangular side length of 12 feet. the bottom half has a square base of 30 feet by 30 feet, and a trapezoid side length of 12 feet. the lower half of a square pyramid is made of granite and the top half is made of limestone. using the dimensions in the diagram, find the exposed surface area of the granite portion of the pyramid, including the granite base.
A. 1,980 ft
B. 1,440 ft
C. 2,340 ft
D. 1,080 ft
