Calculate Cube Side Length: Finding the Edge When Volume = 1331

To solve this problem, we need to find the side length of the cube given that its volume is 1331 cubic units.

We use the formula for the volume of a cube:
$V = a^3$

Here, the volume $V$ is 1331, so substituting into the formula gives:
$1331 = a^3$

To find $a$, take the cube root of both sides:
$a = \sqrt[3]{1331}$

Calculating the cube root, we find:
$a = 11$

Thus, the side length of the cube is $\mathbf{11}$. This corresponds to choice 3 from the options provided.