The surface area \( A \) of a cube can be calculated using the formula:
\[ A = 6s^2 \]
where \( s \) is the length of a side of the cube.
For a cube with sides measuring 11 meters:
\[ A = 6(11)^2 \]
Calculating \( 11^2 \):
\[ 11^2 = 121 \]
Now, substituting back into the surface area formula:
\[ A = 6 \times 121 = 726 \]
Therefore, the surface area of the cube is \( 726 , m^2 \) or \( 726 , m , \text{squared} \).
So the correct response is 726 m² or 726 m squared.