Quadrilateral

Sajeroning géomètri (Euclidean, quadrilateral utawa quarangle utawa tetragon iku sawijining wangun segi akèh polygon kanthi papat sisi (utawa 'rusuk') lan papat pojok. Tembung quadrilateral asal saka tembung quad (tegesé "papat") lan lateral (tegesé "sisih").

Quadrilateral
Enem wangun quadrilateral
Rusuk land vertex	4
Schläfli symbol	{4} (for square)
Jembar	various methods; see below
Internal angle (degrees)	90° (for square)

Quadrilateral iku poligon sing bisa awujud prasaja utawa komplèks. Quadrilateral bisa awujud convex utawa concave.

Rujukan

Pranala njaba

Wikimedia Commons duwé médhia ngenani Tetragons.

• Weisstein, Eric W., "Quadrilateral" saka MathWorld.
• Compendium Geometry Analytic Geometry of Quadrilaterals
• Quadrilaterals Formed by Perpendicular Bisectors, Projective Collinearity and Interactive Classification of Quadrilaterals from cut-the-knot
• Definitions and examples of quadrilaterals and Definition and properties of tetragons from Mathopenref
• A (dynamic) Hierarchical Quadrilateral Tree Archived 2011-07-18 at the Wayback Machine. at Dynamic Geometry Sketches Archived 2009-03-21 at the Wayback Machine.
• An extended classification of quadrilaterals Archived 2019-12-30 at the Wayback Machine. at Dynamic Math Learning Homepage Archived 2018-08-25 at the Wayback Machine.
• The role and function of a hierarchical classification of quadrilaterals Archived 2011-07-19 at the Wayback Machine. by Michael de Villiers