Given:
As the triangle ABC is right triangle. To find the missing side, use the pythgorean theorem,
[tex]\begin{gathered} \text{Hypotenuse}^2=side^2+side^2 \\ AC^2=AB^2+BC^2 \\ 50^2=48^2+x^2 \\ x^2=2500-2304 \\ x^2=196 \\ \text{Taking the square root,} \\ x=\pm14 \\ x=14\ldots\ldots\ldots.for\text{ non negative length.} \end{gathered}[/tex]
Answer: x=14
