Answer
10 inches
Work Step by Step
x is the length and width of the open box
The volume of box is represented by the following equation:
$x\times x\times2=200$
Simplify.
$2x^2=200$
Divide each side by 2.
$2x^2\div 2=200\div2$
Simplify.
$x^2=100$
Take the square root of each side.
$\sqrt{x^2}=\sqrt{100}$
Simplify.
$x=10$
