The surface area of rectangular prism is
[tex]A=2wl+2lh+2hw[/tex]Where w is the width, w = 10 ft here and h is the height h = 7 ft here and l is the length l = 10 ft here.
The surface area is now given by
[tex]\begin{gathered} A=2\times10\times12+2\times7\times10+2\times7\times12 \\ A=240+140+168 \\ =548 \end{gathered}[/tex]
