Step-by-step explanation
We want to find the total surface area of the 3d figure given .
1. The figure is a prism.
The perimeter of the base is 14.
Thus, the lateral surface area is,
![\begin{gathered} LSA=Perimeter\text{ }of\text{ }base* height\text{ }of\text{ }prism \\ LSA=14*11=154square\text{ units} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/rxxik71yvtyx9ogphum7kh3usx5cly15rk.png)
The total surface area is thus;
![\begin{gathered} TSA=LSA+2(BASE\text{ }AREA) \\ =154+2(19) \\ =192\text{ square units} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/gbnd819jc0ik9sywocqjmobt74e7dt1mch.png)
Thus, the total surface area is 192 square units.