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Cardiod and the two coin puzzle
Author:
Jonathan Holland
The two coin puzzle
GeoGebra
New Resources
Icosahedron1
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Poorly Drawn Parallelograms
Exploring the Derivative of a Quadratic Function
Sphere on a Grid
Discover Resources
Ster_Brocot
Translation Screensaver
Exam 1
Perpendicular Lines
Finding coefficients in equivalent Polynomials
Discover Topics
Curve Sketching
Unit Circle
Centroid or Barycenter
Parallelogram
Rational Numbers