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Recreational Mathematics
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Demonstrations 1  20 of 896
Straight Across Puzzle
New this week
Making the Three Areas Defined by Congruent Overlapping Circles Equal
New this month
Polya Conjecture
New this month
Social Golfer Problem
Sydler's Dissection of a Hill Tetrahedron into an Isosceles Triangular Prism
Doyle Spirals
Benford's Law and Data Spread
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
Envelope Paradox
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
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