Answer:
7949.13 feet
Step-by-step explanation:
We are given that,
Angle of depression from the spot to the group = 39°
Height of Grand Canyon = 5000 feet.
So, we will get the following figure of a right triangle.
<em>As, 'in a right triangle, the angles and the sides can be written in trigonometric form'.</em>
We get,
i.e.
i.e.
i.e.
i.e. x = 7949.13 feet
Thus, the line of sight distance is 7949.13 feet.