Perimeter
Pronunciation: /pəˈrɪm.ɪ.tər/ Explain
Click on the blue points and drag them to change the figure.
 Manipulative 1  Perimeter of a Polygon Created with GeoGebra. 

The perimeter of a
polygon,
is the edges, or boundary of the polygon, or the length of those edges. The
perimeter of a simple closed curve is the boundary
of that curve or the length of the boundary. The perimeter of a circle is called
a circumference.

Click on the blue points and drag them to change the figure.
 Manipulative 2  Perimeter of an Ellipse Created with GeoGebra. 

References
 McAdams, David E.. All Math Words Dictionary, perimeter. 2nd Classroom edition 201501084799968. pg 137. Life is a Story Problem LLC. January 8, 2015. Buy the book
More Information
 Triangle (perimeter). allmathwords.org. All Math Words Encyclopedia. Life is a Story Problem LLC. 3/12/2009. http://www.allmathwords.org/en/t/triangle.html.
Cite this article as:
McAdams, David E. Perimeter. 3/26/2019. All Math Words Encyclopedia. Life is a Story Problem LLC. http://www.allmathwords.org/en/p/perimeter.html.
Image Credits
Revision History
3/26/2019: Corrected descriptions of the manipulatives. (
McAdams, David E.)
12/21/2018: Reviewed and corrected IPA pronunication. (
McAdams, David E.)
12/1/2018: Removed broken links, updated license, implemented new markup, updated geogebra app. (
McAdams, David E.)
10/25/2008: Initial version. (
McAdams, David E.)