Input data
Cos function (or cosine function) in a triangle is the ratio of the adjacent side to that of the hypotenuse.
Procedure
[tex]\begin{gathered} \cos 22=\frac{19}{x} \\ x=\frac{19}{\cos 22} \\ x=20.5 \end{gathered}[/tex]
The answer would be x = 20.5
