You can find the surface area of a cube using the equation \(SA=6a^2\), where a is the length of an edge.
First, substitute. \(200200=6a^2\)
Then we simplify. We need to get rid of the squared. The opposite of squaring is square root. \(\sqrt{200200} =\sqrt{6a^2 }
\\ 447.437146424=6a\)
Now we isolate the variable by dividing by 6. \(\frac{447.437146424}{6} = \frac{6a}{6} \\ 74.5728577373=a\)
The edge length of the cube is about 75.57.