Antipodal

Pronunciation: /ænˈtɪ pədl/ ?

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Manipulative 1: Antipodal points on a circle. 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.

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Manipulative 2: Antipodal points on a sphere. Created with GeoGebra.

References

  1. antipodal. merriam-webster.com. Encyclopedia Britannica. (Accessed: 2009-12-31). http://www.merriam-webster.com/dictionary/antipodal.

Cite this article as:


Antipodal. 2009-12-31. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/a/antipodalpoints.html.

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Revision History


2009-12-31: Added "References" (McAdams, David.)
2009-04-03: Changed manipulative 2 to show antipodal points for any point on the sphere. (McAdams, David.)
2008-12-19: Added vocabulary links (McAdams, David.)
2008-12-05: Initial version (McAdams, David.)

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