The ramp is modelled as shown in the diagram below.
The angle of elevation from the car is the angle form by the horizontal line and the observer eye from the car. In the diagram, this angle is marked by [tex]x[/tex]
We use trigonometry ratio to work out the value of [tex]x[/tex]
[tex]tan(x)= \frac{opposite}{adjacent} [/tex]
[tex]tan(x)= \frac{80}{445} [/tex]
[tex]x= tan^{-1}( \frac{80}{445}) [/tex]
[tex]x=10.19[/tex]°
