Angle of Elevation and Depression

Pronunciation: /'æŋ.gəl ʌv ˌɛləˈveɪ.ʃən ənd dəˈpɹɛ.ʃən/ Explain

Click on the points and drag them to change the figure. Why can't the object move below the observer? Manipulative 1 - Angle of Elevation Created with GeoGebra. Click on the points and drag them to change the figure. 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.^[2] An angle of depression is the angle below horizontal that an observer must look to see something below the horizon.

References

1. McAdams, David E.. All Math Words Dictionary, angle of elevation. 2nd Classroom edition 20150108-4799968. pg 16. Life is a Story Problem LLC. January 8, 2015. Buy the book
2. angle of elevation. merriam-webster.com. Encyclopedia Britannica. Merriam-Webster. Last Accessed 6/12/2018. https://www.merriam-webster.com/dictionary/angle%20of%20elevation. Buy the book
3. depression. merriam-webster.com. Encyclopedia Britannica. Merriam-Webster. Last Accessed 6/12/2018. https://www.merriam-webster.com/dictionary/depression. Buy the book
4. Hedrick, E.R.. Constructive Geometry. pg 52. www.archive.org. The Macmillan Company. 1916. Last Accessed 6/12/2018. http://www.archive.org/stream/constructivegeom00hedriala#page/52/mode/1up. Buy the book

More Information

• Angles of Elevation & Depression. mathwarehouse.com. Math Warehouse. 6/19/2018. http://www.mathwarehouse.com/geometry/angle/elevation_depression/.

Cite this article as:

McAdams, David E. Angle of Elevation and Depression. 12/21/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. https://www.allmathwords.org/en/a/angleofelevation.html.

Image Credits

• All images and manipulatives are by David McAdams unless otherwise stated. All images by David McAdams are Copyright © Life is a Story Problem LLC and are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Revision History

12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
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.)