Find the value of x. Leave your answer in simplest radical form. (T.G.7)(1point)

Let's begin by identifying key information given to us:
This is a right angle
We will solve for x using:
[tex]\begin{gathered} x^2=mn=(25-9)\cdot9=16\cdot9=144 \\ x^2=144\Rightarrow x=\sqrt[]{144}=12 \\ x=12 \end{gathered}[/tex]