Answer:
[tex]70ft^2[/tex]
Step-by-step explanation:
Surface area is the sum of all sides of the area. Since it is a rectangular prism, each surface area will be multiplied by two to account for the opposite side (ex. top and bottom are the same area).
The front/back area is [tex]1*11[/tex] or 11. So the sum of the areas is 22.
The right/left area is [tex]2*1[/tex] or 2. So the sum of the areas is 4.
The top/bottom area is [tex]2*11[/tex] or 22. So the sum of the areas if 44.
We add these together to find the surface area.
[tex]22+4+44=70[/tex]
The surface area is [tex]70ft^2[/tex]
