Difference between revisions of "Concave polygon"
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Revision as of 15:54, 7 October 2007
A concave polygon is a polygon that has an "opening" in it. In other words, there are two points, A, and B, in the interior of the polgon such that a portion of segment 
is not in the boundary of the polygon. A concave polygon has at least one reflexive angle, or an angle that is greater than 
.
See also
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