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Recreational Mathematics
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Demonstrations 21  40 of 955
Folding a Rectangle into an Envelope
Dissection of a Square and an Isosceles Right Triangle into a Square
Regular 2nGon to Rectangles Dissection
Concurrent Diagonals in a 30Gon
Modular Multiplication on a Circle
Squared Chain Puzzle
Angel Puzzle
The Circles of Descartes
Solve the Loculus of Archimedes
Chromatic Spindles
Princess and Witch Puzzle
Discrepancy Conjecture
3D UnitDistance Graphs
EarthMoon Problem
LimitPeriodic Tilings
Loeschian Spheres
Halving a Triangle Perimeter
Pentagon Tilings
Irreptiles Database
3D RepTiles and Irreptiles
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