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Recreational Mathematics
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Demonstrations 161  180 of 1011
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
Distorting Jessen's Orthogonal Icosahedron to an Octahedron
The Ray Puzzle
Generating the Surreal Numbers
Country Data and Benford's Law
Opposite Coefficients Method for Solving Two Equations in Two Unknowns
Solving a System of Two Linear Equations with Substitution
The Lonely Runner Conjecture
Napkin Chess
TwistHinged Dissection of a Hexagram to Two Hexagons
Rhamses Puzzle
Algebraic Problems in Propositional Logic
Asian Tour Puzzle
Phones Puzzle
Passages Puzzle
Odd Ones Puzzle
Doshu Puzzle
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