Question 1121033
.
More than million of different valid solutions/answers are possible,  depending on relative positions of the bodies 


(the incline,  the tree and the sun)  in  3D  space,  in which we live.



===============



<U>As a reminder</U>:  &nbsp;&nbsp;we all live in &nbsp;3D - not in the &nbsp;2D &nbsp;section of the &nbsp;3D &nbsp;space.



But if you want to pose the problem in this 2D vertical section/plane, then it should be accurately stated in the problem formulation,


with clear explanation where the sun is located relative to the incline and the tree.