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ENCYCLOPEDIA  OF  QUADRI-FIGURES

 

(EQF)

 

  

 

This  encyclopedia  is  dedicated  to  Quadri-figures.

A Quadri-figure is a figure constructed from 4 points and/or 4 lines.

 
                        E Q F - D E F I N I T I O N S
 
 

 

P R O P E R T I E S 

QA-Quadrangle-00 2

 

Quadrangle points and other objects

 

A quadrangle is a geometrical figure consisting of 4 points.

 

There is no order in these points.

 

Abbreviation: QA

 

A Quadrangle produces:

  • 6 connecting lines
  • 4 component triangles
  • 3 component quadrigons
  • 1 diagonal triangle

QL-Quadrilateral-00 2

 

Quadrilateral points and other objects

 

A quadrilateral is a geometrical figure consisting of 4 lines.

 

There is no order in these lines.

 

Abbreviation: QL

 

A Quadrilateral produces:

  • 6 intersection points
  • 4 component triangles
  • 3 component quadrigons
  • 1 diagonal triangle

QG-Quadrigon-00 2

 

Quadrigon points and other objects

 

A quadrigon is a geometrical figure consisting of

 

4 consecutive points and 4 consecutive connecting lines.

 

There is a cyclic order in these points & lines.

 

Abbreviation: QG

 

 

A Quadrigon produces:

  • 2 pairs of opposite lines
  • 2 pairs of opposite points
  • 2 diagonals
  • 1 third diagonal
  • 1 diagonal crosspoint

 

 

 

 

 

 The results of EQF also can be downloaded as a PDF-file.

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