Understanding Angles of Elevation and Depression
Learn how to use angles of elevation and depression to solve problems involving right triangles formed by horizontal and vertical distances. Understand the relationships between angles in different scenarios.
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Presentation Transcript
8-4 Angles of Elevation and Depression Objective: To use angles of elevation and depression to solve problems Essential Understanding: You can use the angles of elevation and depression as the acute angles of right triangles formed by a horizontal distance and a vertical height.
Suppose a person on the ground sees a hang glider at a 38 angle above a horizontal line. This angle is the angle of elevation. At the same time, a person in the hang glider sees the person on the ground at a 38 below a horizontal line. This angle is the angle of depression.
What is the description of the angle as it relates to the situation shown? 1 The angle of depression from the bird to the person in the hot-air balloon. 3 Angle of depression from the person in the hot-air balloon to the base of the mountain. 2 4 Angle of elevation from the person in the hot-air balloon to the bird. The angle of elevation from the base of the mountain to the person in the hot-air balloon.
What is the description of each angle as it relates to the diagram? Angle of elevation from C to A 1 Angle of depression from A to C 2 3 Angle of elevation from A to D 4 Angle of elevation from A to B 5 Angle of depression from B to A
