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Trammel of Archimedes
Author:
David Caliri
A primitive tool of antiquity that describes ellipses.
GeoGebra
New Resources
Open Middle Sector Area Exercise
Umbrella Holder
Arc Length Question Generator
Slanted or Curved Lines?
Paradoxes on π
Discover Resources
Hohenwarter Triangle
Nathifa Davis
Puzzle 2
Luas Segitiga Part B
Points and Lines on a Plane Examples
Discover Topics
Quadratic Functions
Natural Numbers
Cube
Planes
Division