Antipodal

Pronunciation: /ænˈtɪ.pədl/ Explain

Click on the blue point and drag it to change the figure.

Manipulative 1 - Antipodal Points Created with GeoGebra.

Two points on a circle or a sphere are antipodal if they are on the opposite sides of a diameter of that circle or sphere.[1] Click on the blue points in manipulatives 1 and 2 and drag them to change the figure. Points that are antipodal are also called diametrically opposed.

Click on point A and drag it to change the figure

Points A and B are antipodal.
Manipulative 2 - Antipodal Points in a Sphere Created with GeoGebra.

References

  1. McAdams, David E.. All Math Words Dictionary, antipodal. 2nd Classroom edition 20150108-4799968. pg 17. Life is a Story Problem LLC. January 8, 2015. Buy the book
  2. antipodal. merriam-webster.com. Encyclopedia Britannica. Merriam-Webster. Last Accessed 6/12/2018. https://www.merriam-webster.com/dictionary/antipodal. Buy the book

Cite this article as:

McAdams, David E. Antipodal. 12/21/2018. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/a/antipodalpoints.html.

Image Credits

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.)
12/31/2009: Added "References". (McAdams, David E.)
4/3/2009: Changed manipulative 2 to show antipodal points for any point on the sphere. (McAdams, David E.)
12/19/2008: Added vocabulary links. (McAdams, David E.)
12/5/2008: Initial version. (McAdams, David E.)

All Math Words Encyclopedia is a service of Life is a Story Problem LLC.
Copyright © 2018 Life is a Story Problem LLC. All rights reserved.
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License