Question 985452
How do you find area of square if you are given area of the square is 400?  You do not find it!  You are GIVEN the area.


If x is the length of one side, then for a square, ALL of the sides is x each.  The area is {{{x*x}}}.


Let x be side length of a SQUARE, and A be the area of the square.
{{{x^2=A}}}
{{{x=sqrt(A)}}}