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Angle trisection with conchoid

Author:
Stephan Paternotte
Use the arrows at the bottom of the worksheet to step through the construction:
  • Line piece
  • Angle and circle (feel free to adjust)
  • Neusis-ruler (drag B: what movements do the ends of the ruler make?)
  • Conchoid 1
  • Conchoid 2
  • What if the end of the Neusis-ruler is positioned at the intersection of the circle and conchoid 2?
  • Trisection found

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