bn:00065492n
Noun Concept
Categories: 4 (number), archived copy as title, Quadrilaterals
EN
quadrilateral  quadrangle  tetragon
Definitions
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Sources
EN
A quadrilateral is a polygon in Euclidean plane geometry with four edges and four vertices. Wikipedia
A polygon with four sides. OmegaWiki
A geometric shape with four angles and four straight sides; a four-sided polygon. Wiktionary