In order to solve this, we can use the trigonometric ratio of the cosine, which is given by the following expression:
[tex]\cos \theta=\frac{ac}{h}[/tex]
Where ac is the adjacent leg to the angle θ and h is the length of the hypotenuse. By replacing 37° for θ, 17.3 for ac and x for h, we get:
[tex]\cos 37=\frac{17.3}{x}[/tex]
From this expression, we can solve for x to get:
[tex]x=\frac{17.3}{\cos 37}\approx21.7[/tex]
Then, x = 21.7
