To find the surface area of a cube, you can use the formula:
\[ \text{Surface Area} = 6s^2 \]
where \( s \) is the length of a side of the cube.
In this case, the side length \( s = 11 \) meters.
Calculating the surface area:
\[ \text{Surface Area} = 6 \times (11 , m)^2 \]
\[ \text{Surface Area} = 6 \times 121 , m^2 \]
\[ \text{Surface Area} = 726 , m^2 \]
Therefore, the surface area of the cube is 726 m².