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Izidor Hafner
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Demonstrations 1141 - 1160 of 1363
Guessing the Frieze Group
Honeycomb
Constructing Polyhedra Using the Icosahedral Group
Formula for 3D Rotation
Mazes on 2n-Gons
Mazes on Archimedean Tilings
Basis for Pure Geodetic Angles
Self-Descriptive Strings
Tilson's Square-to-Pentagram Dissection
Bradley's Hexagram-to-Square Dissection
Geometric Solution of a Quadratic Equation
A Special Case of the Sum of Two Cosines
Archimedes's Neusis Angle-Trisection
Method of Integer Measures
Guessing a Number Using the Chinese Remainder Theorem
Approximation of Irrationals
Rational Linear Combinations of Pure Geodetic Angles, Part 2
Rational Linear Combinations of Pure Geodetic Angles
Two Visual Proofs of a Basic Trigonometric Identity
Ternary Card Game
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