Filip V. answered 05/20/19
Hard work beats talent when talent fails to work hard.
Taking in consideration that x is the length of one side of the square, and a square has all four equal sides each side of the square would be labeled with the same x length.
Because an area of a square is length times width you multiply (A = L * W): x * x which gets you x2
The problem gives us the area of the triangle which is 110.25. You will set that number equal to the x2
x2 = 110.25
From there you just solve for x by square rooting both sides of the equation.
√(x2) = √(110.25)
x = 10.5cm