Answer:
The angle of elevation is 36.87 degrees
Step-by-step explanation:
see the attached figure to better understand the problem
In the right triangle ABC of the figure
[tex]cos(\theta)=\frac{AC}{BC}[/tex] ----> by CAH (adjacent side divided by the hypotenuse)
substitute the given values
[tex]cos(\theta)=\frac{12}{15}[/tex]
[tex]\theta=cos^{-1}(\frac{12}{15})=36.87^o[/tex]
