Projective Geometry: Homography, Cross-ratio, Harmonic Conjugates, Polarity

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• Offline Activity (.zip)

• GeoGebra Files

  1. CrossRatio (.ggb)
     
  2. PappusTheorem (.ggb)
     
  3. CrossRatioMetric (.ggb)
     
  4. HarmonicConjugatesPole (.ggb)