Step-by-step explanation:
you can open the file I gave you now. the answer is there
The tangent function gives the ratio of vertical to horizontal distance in this case.
.. vertical distance = (horizontal distance)*tan(angle of depression)
.. = (40 m)*tan(50°)
.. vertical distance ≈ 47.7 m
You simply divide -364 by -26 so d=14
hope this helps! :D