
To name: The angle of elevation and the angle of depression in the figure. Compare the measures of these angles. Explain.

Answer to Problem 3CFU
Explanation of Solution
Given information: The figure:
Calculation:
The angle of depression is looking down. So that is the angle from the horizontal the pilot of the plane looks down to see the ship.
In this case
The angle of elevation is looking up. So that is the angle from the horizontal the ship’s captain would make with the horizontal looking up at the plane.
In this case
Because the paths of the ship and plane are parallel, the line of sight connecting them act as a transversal and the angle of depression and the angle of elevation are alternate interior angles and such area equal.
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