- a figure, especially a closed plane figure, having three or more, usually straight, sides.
Origin of polygon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for polygon
The trace of the walls was a polygon not unlike a capital L.A History of Art in Ancient Egypt, Vol. II (of 2)
The Germans do not appear to have penetrated into the Polygon Wood at any point.Ypres 1914
The view from the Polygon monument is desolation on all sides.The Challenge of the Dead
There was room there for making every sort of triangle or polygon.Insect Adventures
J. Henri Fabre
It will be understood that an n-side is different from a polygon of n sides.
- a closed plane figure bounded by three or more straight sides that meet in pairs in the same number of vertices, and do not intersect other than at these vertices. The sum of the interior angles is (n –2) × 180° for n sides; the sum of the exterior angles is 360°. A regular polygon has all its sides and angles equal. Specific polygons are named according to the number of sides, such as triangle, pentagon, etc
C16: via Latin from Greek polugōnon figure with many angles
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for polygon
Online Etymology Dictionary, © 2010 Douglas Harper
- A closed plane figure having three or more sides. Triangles, rectangles, and octagons are all examples of polygons.♦ A regular polygon is a polygon all of whose sides are the same length and all of whose interior angles are the same measure.
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