Answer:
Total surface area = 580.96 yd^2
Step-by-step explanation:
Total surface area
From left to right
Rectangle 1
A = lw = 9.9 *20 =198
Rectangle 2
A = lw = 6.8 *20 =136
Rectangle 3
A = lw = 9.9 *20 =198
Triangle top
A = 1/2 bh = 1/2 (6.8)(7.2) =24.48
Triangle bottom
A = 1/2 bh = 1/2 (6.8)(7.2) =24.48
Add them together
198+136+198+24.48+24.48
580.96
Total surface area = 580.96 yd^2
