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Recreational Mathematics
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Demonstrations 61  80 of 1064
The Ray Puzzle
Cylindrical Anamorphosis of Some Popular Images
Dissection of a Square to a Parallelogram with the Same Base
Tarski's Adaptation of Wojtowicz's Argument on Optimal Dissection of a Unit Square
Dealer's Odds in Blackjack
Dissection and Reassembly of Parallelogram of Given Base and Altitude
Roulette (Hypotrochogon) of a Polygon Rolling inside Another Polygon
Roulette (Epitrochogon) of a Regular Polygon Rolling around Another Regular Polygon
The Bouniakowsky Conjecture
Factory for Fractiles of Order Four
Two Equidecomposable Triangles
SwingandTwist Hinged Dissection of One Regular Heptagon into Seven
Gerwien's Simultaneous Dissection of Three Triangles of Same Area
Generating 9Flips
SwingandTwist Hinged Dissection of One Regular Heptagon into Eight
Polar Plots Drawn by a Mechanical Linkage
Dissection of an Octagram into Five Octagrams
Optical Illusion of the Extra Piece
Hanegraaf's Dissection of a Truncated Octahedron into a Hexagonal Prism
Tetrahedron Centers
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