# Angle of elevation and depression

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##### Intros

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##### Examples

###### Lessons

**Analyze the Use of Angle of Elevation or Depression**A house was built next to a mountain. The angle of depression from the top of the mountain to the house is 12°. If the mountain is 800m tall, how far is the house from the mountain?

- Billy is standing 150m away from a wind turbine. His eye level is 2m from the ground. If his angle of elevation is 25° to the top of the turbine, determine the height of the wind turbine.
**Evaluate the Height of An Object With No Angle of Elevation or Depression Given**Nelson, whose height is 1.8m, is standing 12m away from a light pole. If he casts a shadow 15m away from the pole, what is the height of the light pole?

**Determine the Height of An Object Using the Angle of Elevation AND Depression**Buildings X and Y are 240m from each other. From the roof of building X, the angle of elevation to the top of building Y is 26° and the angle of depression to the base of building Y is 32°. How tall is each building?

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