Angle of Elevation and Depression

Pronunciation: /'æŋ gəl ʌv ˌɛləˈveɪ ʃən/ Explain

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Manipulative 1 - Angle of Elevation Created with GeoGebra.

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Why can't the object move above the observer?
Manipulative 2 - Angle of Depression Created with GeoGebra.


Manipulative 2 - Angle of depression. Created with GeoGebra.

An angle of elevation is the angle above horizontal that an observer must look to see something above the horizon.[1] An angle of depression is the angle below horizontal that an observer must look to see something below the horizon.

References

  1. angle of elevation. merriam-webster.com. Encyclopedia Britannica. Merriam-Webster. Last Accessed 8/6/2018. https://www.merriam-webster.com/dictionary/angle%20of%20elevation.
  2. depression. merriam-webster.com. Encyclopedia Britannica. Merriam-Webster. Last Accessed 8/6/2018. https://www.merriam-webster.com/dictionary/depression.
  3. Hedrick, E.R.. Constructive Geometry. pg 52. www.archive.org. The Macmillan Company. 1916. Last Accessed 8/6/2018. http://www.archive.org/stream/constructivegeom00hedriala#page/52/mode/1up.

More Information

Cite this article as:

McAdams, David E. Angle of Elevation and Depression. 7/10/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/a/angleofelevation.html.

Image Credits

Revision History

6/14/2018: Removed broken links, changed Geogebra links to work with Geogebra 5, updated license, implemented new markup. (McAdams, David E.)
5/5/2011: Initial version. (McAdams, David E.)

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