Point of Tangency

Pronunciation: /pɔɪnt ʌv ˈtæn.dʒən.si/ Explain
Click on the red point and drag it to change the figure.

Can there be more than one point of tangency for a tangent line to a circle? Why?
Manipulative 1 - Point of Tangency Created with GeoGebra.

A point of tangency is the point where a tangent line touches an object.


  1. McAdams, David E.. All Math Words Dictionary, point of tangency. 2nd Classroom edition 20150108-4799968. pg 140. Life is a Story Problem LLC. January 8, 2015. Buy the book

Cite this article as:

McAdams, David E. Point of Tangency. 12/21/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/p/pointoftangency.html.

Image Credits

Revision History

12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
12/1/2018: Removed broken links, updated license, implemented new markup, updated geogebra app. (McAdams, David E.)
5/5/2010: Initial version. (McAdams, David E.)

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