Quadrigon Items

Geometric Entities in a 4-Gon Framework

  Quadrigon General Information
QG-1 Systematics for describing QG-Points
QG-2 List of Quadrigon Lines
QG-3 List of Parallel Quadrigon Lines
QG-4 List of Perpendicular Quadrigon Lines
QG-5 List of QG-Crosspoints
   
  Quadrigon Centers
QG-P1 Diagonal Crosspoint
QG-P2 Midpoint 3rd QA-Diagonal
QG-P3 Midpoint 3rd QL-Diagonal
QG-P4 1st QG-Quasi Centroid
QG-P5 1st QG-Quasi Circumcenter
QG-P6 1st QG-Quasi Orthocenter
QG-P7 1st QG-Quasi Nine-point Center
QG-P8 2nd QG-Quasi Centroid
QG-P9 2nd QG-Quasi Circumcenter
QG-P10 2nd QG-Quasi Orthocenter
QG-P11 2nd QG-Quasi Nine-point Center
QG-P12 Inscribed Harmonic Conic Center
QG-P13 Circumscribed Harmonic Conic Center
QG-P14 Center of the M3D Hyperbola
QG-P15 Kirikami Center
QG-P16 Schmidt Point
QG-P17 Projection QG-P1 on QG-L1
QG-P18 Quasi Isogonal Crosspoint
QG-P19 Quasi Isogonal Conjugate of QG-P1
   
  Quadrigon Multiple Points
QG-2P1 Inscribed Square Centers
QG-2P2 Endpoints 3rd QA-Diagonal
QG-2P3 Endpoints 3rd QL-Diagonal
QG-2P4 Intersection points QG-Ci1 and QG-Ci2
QG-2P5 Intersection points QG-Ci2 with QG-Diagonals
QG-2P6 Circumscribed Square Centers / Van Aubel Pts
  Quadrigon Lines
QG-L1 The 3rd Diagonal
QG-L2 The Harmonic Line
QG-L3 The QG-Centroids Line
QG-L4 1st QG-Quasi Euler line
QG-L5 2nd QG-Quasi Euler line
QG-L6 Inscribed Square Axis
   
  Quadrigon Circles
QG-Ci1 QA-DT-Thales Circle
QG-Ci2 QL-DT-Thales Circle
QG-Ci3 Quasi Isogonal Circumcircle
QG-Ci4 Circumcircle of the 2nd QG-Quasi Diag.Triangle
QG-Ci5 QG-Six-point Circle
   
  Quadrigon Conics
QG-Co1 Inscribed Harmonic Conic
QG-Co2 Circumscribed Harmonic Conic
QG-Co3 M3D Hyperbola
   
  Quadrigon Cubics
QG-Cu1 QG-Van Aubel Cubic
QG-2Cu1 Perspective Squares Double Cubic
   
  Quadrigon Triangles
QG-Tr1 1st QG-Quasi Diagonal Triangle
QG-Tr2 2nd QG-Quasi-Diagonal Triangle
QG-Tr3 Quasi Isogonal Triangle
   
  Quadrigon Transformations
QG-Tf1 QG-Projective Square Transformation
QG-Tf2 QG-Quasi Isogonal Conjugate


More Quadrigon Items: Take a look at n-Points Geometry :

* Every item that starts with nG-n- also has a version for a 4-gon: 4G-n-




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