Answer:
[tex]4.50\ ft[/tex]
Step-by-step explanation:
see the attached figure to better understand the problem
In the right triangle ABC
[tex]cos(A)=\frac{AC}{AB}[/tex] -----> the cosine is the adjacent side to angle A divided by the hypotenuse
substitute the values and solve for x
[tex]cos(68\°)=\frac{x}{12}[/tex]
[tex]x=12*cos(68\°)=4.50\ ft[/tex]