The formula for volume of a prism is V=(the area of the base*height). Substitute the known values so you have:
1331=11(A)
A=1331/11
A=121 in²
The base is a square, making its area is s², so you have the equation:
s²=121
s=11 in
This makes all the side lengths the same, making the tank shape a cube.
To find the surface area of a cube, use the formula SA=6s². Substitute the known value in so you have:
SA=6*11²
SA=6*121
SA=726 in²
The final answer is that the tank is cube-shaped with a surface area of 726 in².
