1) OABCD is a rectangle-based pyramid. The picture on the right is the bird's-eye VlEW from above. Point A is on the x-axis (red), and is 2 meters east of 0. Point C is on the y-axis (green), and isi meters north of 0. Each unit is"! meter. The pyramid is 6 meters tall. (a) A78 is projected onto A3 to become A791 First. sketch this projection and paste it on this answer document). (b) To 3 decimal places. calculate the magnitude of this projected vector. Finally, calculate A}. (c) Make up a work question. which has |A_i?'| |AB| as its answer. The unit of work is joule