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Demonstrations 1  20 of 386
Realization of Heawood's Map on a Toroidal Polyhedron
Updated this month
Rational Functions with Complex Coefficients
Fold and Twist Algorithm for Some Regular nGons
Folding a Strip of Paper to Make an nGon
Folding a Strip to Form Regular Odd nGons
RepTiles
Paths inside a Polygon
Making a Strip of Isosceles Trapezoids
Guessing the Symmetry Group
Pythagorean Theorem for Regular Polygons
Area of Parallelogram in Terms of Its Diagonals
Fourier Construction of Regular Polygons and Star Polygons
Construction of Squares from a Parallelogram
Folding a Strip into a Pentagon
Four Visual Proofs of a Theorem about a Regular Nonagon
Tiling a Hexagon
Making a Hexagon Using a FoldandTwist Algorithm
Loyd's Dissection of a Square to Five Different Figures
Regular 2nGon to Rectangles Dissection
Center of Mass of a Perforated Square Plate
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