Question 452802
{{{A=s^2}}} Start with the area of a square formula.



{{{sqrt(A)=s}}} Take the square root of both sides (note: we're only taking the positive square root since a negative length doesn't make sense).



{{{s=sqrt(A)}}} Flip the equation.



{{{s=sqrt(64)}}} Plug in {{{A=64}}}.



{{{s=8}}} Take the square root of {{{64}}} to get {{{8}}}.



So if a square has an area of {{{64}}} square inches, then it has a side length of {{{8}}} inches.