Perpendicular Planes

Pronunciation: /ˌpɜr.pənˈdɪk.jə.lər pleɪnz/ Explain

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Manipulative 1 - Perpendicular Planes Created with GeoGebra.

Two planes are perpendicular planes if the dihedral angle between the planes is a right angle, is 90° = π / 2 rad.


  1. McAdams, David E.. All Math Words Dictionary, perpendicular planes. 2nd Classroom edition 20150108-4799968. pg 138. Life is a Story Problem LLC. January 8, 2015. Buy the book

Cite this article as:

McAdams, David E. Perpendicular Planes. 4/27/2019. All Math Words Encyclopedia. Life is a Story Problem LLC.

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Revision History

4/27/2019: Changed equations and expressions to new format. (McAdams, David E.)
12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
8/7/2018: Changed vocabulary links to WORDLINK format. (McAdams, David E.)
5/5/2011: Initial version. (McAdams, David E.)

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