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Recreational Mathematics
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Demonstrations 61  80 of 936
Proposition 29, Book XI, Euclid's Elements
Tiling Constructor, TileDragging Variant
Kaleidocycles
Inverting the Rhombic Dodecahedron
Cubic Symmetry Types
SixPiece Dissection of a Tetrahedron into Its Mirror Image
Escher's Method Applied to Created Celtic Designs
Irregular Tilings
Rubik's Snake Puzzle
Ant Puzzle
Other Formulations of the Collatz Problem
Envelope Paradox
Straight Across Puzzle
Making the Three Areas Defined by Congruent Overlapping Circles Equal
Polya Conjecture
Social Golfer Problem
Sydler's Dissection of a Hill Tetrahedron into an Isosceles Triangular Prism
Doyle Spirals
Proposition 7, Book XII, Euclid's Elements
Space Filling with a Rhombic Dodecahedron of the Second Kind
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