Loco Loci

Steve, Jun 17, 2015

A collection of Geogebra worksheets which demonstrate the capability of Geogebra to display/generate a variety of loci. The conic sections are represented as well as other interesting loci such as a harmonograph and a pintograph.


  • 1. Parabola as a Locus of Points
  • 2. Ellipse Locus of points
  • 3. Hyperbola locus of Points
  • 4. Animated Cycloid
  • 5. Train Wheel Cycloid
  • 6. Circle rolling around the outside of another circle - Locus
  • 7. Circle Rolling Inside Another Circle - Locus
  • 8. Bug on a Pendulum
  • 9. Harmonoraph
  • 10. Pintograph locus
  • 11. Pintograph using a triangle and a cardiod
  • 12. Elliptical Spirograph Locus

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Parabola as a Locus of Points

Uses the Locus tool to demonstrate the locus of points which is the parabola. All points which are equadistant from a point (the focus) and a line (the directrix).[br]Manipulate the distance with the slider and note how the distance from the focus to the point and the distance of the point to the directrix are the same.
Parabola as a Locus of Points
– Steve

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