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9-3 Angles of Elevation and Depression

9-3 Angles of Elevation and Depression. Goal: To use angles of elevation and depression to solve problems. Suppose a person on the ground sees a hot-air balloon gondola at a 38° angle above a horizontal line. This angle is the angle of elevation . At the same time, a person in the

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9-3 Angles of Elevation and Depression

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  1. 9-3 Angles of Elevation and Depression Goal: To use angles of elevation and depression to solve problems

  2. Suppose a person on the ground sees a hot-air balloon gondola at a 38° angle above a horizontal line. This angle is the angle of elevation. At the same time, a person in the hot-air balloon sees the person on the ground at a 38° angle below a horizontal line. This angle is the angle of depression. Examine the diagram. The angle of elevation is congruent to the angle of depression because they are alternate interior angles.

  3. Assignment: pp. 484-8 #1-21, 23, 28, 33, 34

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