What is the area of one face of a cube if the cube measures 6.6 inches on each side?

Since all sides of a cube are congruent, the area of one face of the cube can be found using the area formula of a square. A= length x width

Since all sides are the same, you can fill in your formula as:
6x6
Multiply and you get
6 x 6= 36

Then, make sure you use the proper units for area and your final answer is
36 in^2

21/2 or 5/2