SOLUTION
Given the figure and question on the question tab;
[tex]\begin{gathered} The\text{ total surface area is:} \\ 2(20\times17)+2(20\times19)+2(19\times17) \\ =2(340)+2(380)+2(323) \\ =680+760+646 \\ =2086\text{ yd}^2 \end{gathered}[/tex]
Final answer:
