Category:Quadrangles

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This category contains results about Quadrangles.
Definitions specific to this category can be found in Definitions/Quadrangles.

A quadrangle is a plane figure consisting of $4$ points joined by straight lines.

No $3$ points of a quadrangle are collinear.

Subcategories

This category has only the following subcategory.

C

Complete Quadrangles‎ (1 C)

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Projective Geometry