Inscribed Circle

Pronunciation: /ɪnˈskraɪbd ˈsɝ.kəɫ/ Explain
Click on the blue points and drag them to change the figure.

Can the incenter (point D) be outside the triangle? How do you know.
Manipulative 1 - Inscribed Triangle Created with GeoGebra.

An inscribed circle is a circle drawn inside a polygon that touches, without crossing, as many of the sides of the polygon as possible.


  1. McAdams, David E.. All Math Words Dictionary, inscribed circle. 2nd Classroom edition 20150108-4799968. pg 99. Life is a Story Problem LLC. January 8, 2015. Buy the book

Cite this article as:

McAdams, David E. Inscribed Circle. 12/21/2018. All Math Words Encyclopedia. Life is a Story Problem LLC.

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Revision History

12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
8/6/2018: Initial version. (McAdams, David E.)

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