To get started is to focus on the very definition of a cube. It can be seen that any of the faces of the cube is a square. Thus, the task of finding the square face of the cube is reduced to the problem of finding the square of any of the squares (faces of the cube). You can take it any of the faces of the cube, since the lengths of all its edges equal.
In order to find the area of a face of the cube that you want to multiply between a pair of any of the parties, they are all equal to each other. The formula can be expressed as:

S = a2, where a is a square of side (edge of the cube).
Example: the edge Length of the cube is 11 cm, it is required to find its area.

Solution: given the length of the edge, you can find its area:

S = 112 = 121 cm2

Answer: the square faces of a cube with an edge of 11 cm is equal to 121 cm2