Calculate Surface Area: 11 cm Cube with Equal Edges

To solve this problem, we will calculate the surface area of the cube with edge length 11 cm using the formula for the surface area of a cube. The steps are as follows:

• Step 1: Identify the side length of the cube
  The problem states that each edge of the cube is 11 cm long.
• Step 2: Apply the formula for the surface area of a cube
  The surface area $A$ of a cube is given by the formula $A = 6s^2$, where $s$ is the side length.
• Step 3: Perform the calculation
  Substitute $s = 11$ cm into the formula:

$A = 6 \times 11^2$

Calculate $11^2 = 121$:

$A = 6 \times 121$

Calculate $6 \times 121 = 726$.

Therefore, the surface area of the cube is $\textbf{726 cm}^2$.

Looking at the choices provided, the correct answer is the third choice: $726 \text{ cm}^2$.

Therefore, the solution to the problem is $\textbf{726 cm}^2$.