Definition of Concave polygon

1. Noun. A polygon such that there is a straight line that cuts it in four or more points.

Generic synonyms: Polygon, Polygonal Shape
Specialized synonyms: Reentering Polygon, Reentrant Polygon
Antonyms: Convex Polygon



Concave Polygon Pictures

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Lexicographical Neighbors of Concave Polygon

concatenated
concatenates
concatenating
concatenation
concatenations
concatenative
concatenator
concatener
concause
concauses
concavation
concavations
concave
concave lens
concave mirror
concave polygon (current term)
concave polyhedron
concave shape
concaved
concavely
concaveness
concaves
concaving
concavities
concavity
concavo-concave
concavo-convex
concavoconcave
concavoconcave lens
concavoconvex

Literary usage of Concave polygon

Below you will find example usage of this term as found in modern and/or classical literature:

1. Plane and Solid Geometry by George Albert Wentworth (1904)
"197. Each angle of a convex polygon (Fig. 2) is called a salient angle, and is less than a straight angle. 198. The angle EDF of the concave polygon (Fig. ..."

2. Plane and Solid Geometry by George Albert Wentworth (1899)
"A concave polygon is a polygon of which two or more sides, if produced, will enter the polygon. 197. ... The angle EDF of the concave polygon (Fig. ..."

3. Plane Geometry by George Albert Wentworth (1899)
"A concave polygon is a polygon of which two or more Bides, if produced, ... The angle EDF of the concave polygon (Fig. 3) is called a re-entrant angle, ..."

4. Plane and Solid Geometry by Elmer Adelbert Lyman (1908)
"If one of the interior angles is reflex, the polygon is a concave polygon. 179. In elementary geometry the word CONCAVE polygon is understood to refer to a ..."

5. A Treatise on Elementary Geometry: With Appendices Containing a Collection by William Chauvenet (1898)
"A concave polygon is one of which two or more sides, when produced, will enter the space enclosed by the perimeter; as MNOPQ, of which OP and QP when ..."

6. Elements of Geometry by Wm. H. H. Phillips, Theodore Preston Hill (1878)
"A concave polygon is a ... It is evident that a line may be drawn cutting the perimeter of a concave polygon in four or more points. ..."

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