SA = 6s2 where s is the length of one side of the cube.
Think about it.
You know that s x s gives you the area of one face of a cube.
You also know that a cube has 6 faces.
Therefore the total surface area is:
(s x s) + (s x s) + (s x s) + (s x s) + (s x s) + (s x s)
Or
6 x (s x s)
Or
6s2
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Total Surface Area of Cube is 6a2 . Here "a" is the "length of each side" of the cube.
6B
You find the surface area of a cube by using the formula 6e2. In this case, e=edge.
For a cube with sides of length x, surface area = 6x2 and volume = x3.
Total Surface Area = 6L2. Where L = the length of one side of the cube.