Hyperbolic lines in Poincaré disk and Escher's works

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• Offline Activity (.zip)

• GeoGebra Files

  1. Circle inversion of arcs (.ggb)
     
  2. Hyperbolic line through two points inside the disk (.ggb)
     
  3. Hyperbolic line through a point inside the disk and a point on the boundary (.ggb)
     
  4. Hyperbolic line through two points on the boundary (.ggb)
     
  5. Two parallels and infinite hyperparallels (.ggb)
     
  6. angels&demons Pole construction (construction used by Escher) (.ggb)
     
  7. angels&demons with new hyperbolic tools (.ggb)
     
  8. Escher's fish (.ggb)
     
  9. Eschers' lizards (.ggb)