The surface area of a cube is just the area of all six sides of the cube. Therefore, if we let s = the cube's side,
The surface area would be 6⋅s2 because the area of one face is s2 and there are six faces
Given this, we know from the problem that s=5
We can just plug in for s.
SA = 6⋅52
SA = 6⋅25
SA = 150
