Answer: The surface area is 645.9 ft^2.
Step-by-step explanation:
12.1 * 9 = 229.9 /2 = 114.95
12.1 * 9 = 229.9/2 = 114.95
5 * 8 = 40
8* 14 = 112
8 * 14 = 112
8 * 19 = 152
114.95 + 114.95 + 40 +112 + 112 + 152 = 645.9
