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