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Demonstrations 1 - 20 of 8178
Negative Disk Magnifier Illusion
The Seven Bridges of Königsberg
Equal Cores and Shells in Circles and Spheres
An Example of the Bolyai-Gerwien Theorem
Lagrange's Four-Square Theorem Seen Using Polygons and Lines
Three Equal Segments from the Altitudes of a Triangle
Ratios Involving Six Radii
Circumcircles of Two Midpoints and an Altitude
Random Domino Tilings
Electronic Structure of 1D and 2D Quasiperiodic Systems
Parking a Car
The Path of the Rear Wheels of a Bus
Bisecting the Area and Perimeter of a Triangle
Bisecting a Triangle
Three Circles with Two Common Tangents
Reflections of a Line through the Orthocenter in the Sides of an Acute Triangle
Squares on a Line Segment
Ada Deitz Polynomials for Handwoven Textiles
Vega's Calculation of Pi
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