Alternate Angles

Pronunciation: /ˈɔl.tər.nɪt ˈæŋ.gəlz/ Explain

Figure 1: Alternate Interior Angles

Alternate angles are angles that are on different sides of a transversal. A transversal is a line that intersects two other lines. Alternate interior angles are between the two lines (see figure 1). Alternate exterior angles are outside the two lines (see figure 2). See also the Alternate Exterior Angles Theorem and the Alternate Interior Angles Theorem.

Figure 2: Alternate Exterior Angles

References

1. McAdams, David E.. All Math Words Dictionary, alternate angles. 2nd Classroom edition 20150108-4799968. pg 13. Life is a Story Problem LLC. January 8, 2015. Buy the book

More Information

• McAdams, David E.. Transversal. allmathwords.org. Life is a Story Problem LLC. 6/19/2018. http://www.allmathwords.org/en/t/transversal.html.

Cite this article as:

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

Image Credits

• All images and manipulatives are by David McAdams unless otherwise stated. All images by David McAdams are Copyright © Life is a Story Problem LLC and are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Revision History

12/21/2018: Reviewed and corrected IPA pronunication. (McAdams, David E.)
6/13/2018: Removed broken links, updated license, implemented new markup. (McAdams, David E.)
10/12/2010: Figure 2 was incorrectly identified as figure 1. (McAdams, David E.)
12/28/2009: Added "References". (McAdams, David E.)
4/17/2008: Initial version. (McAdams, David E.)