চতুৰ্ভুজ

বৈশিষ্ট্য অনুসাৰে চতুৰ্ভুজক বিভিন্ন নামত নামত নামাংকৰন কৰা হৈছে। ইয়াৰ ভিতৰত উল্লেখযোগ্যবোৰ হ’ল :-

ট্ৰেপিজিয়াম, সামান্তৰিক, ৰম্বাছ, আয়তক্ষেত্ৰ আৰু বৰ্গক্ষেত্ৰ।

• Weisstein, Eric W., "Quadrilateral" মেথৱৰ্ল্ডৰ পৰা.
• 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 at Dynamic Geometry Sketches
• 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
• Quadrilateral Venn Diagram Archived 2011-09-07 at the Wayback Machine Quadrilaterals expressed in the form of a Venn diagram, where the areas are also the shape of the quadrilateral they describe.
• The role and function of a hierarchical classification of quadrilaterals Archived 2011-07-19 at the Wayback Machine by Michael de Villiers