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Demonstrations 1 - 20 of 472
Sum of the Squares of the Sides of a Projected Regular Tetrahedron
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Roulette (Hypotrochogon) of a Polygon Rolling inside a Circle
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Constructing a Rectangle with the Same Area as a Pentagon
Dissection of a Square to a Parallelogram with the Same Base
Tarski's Adaptation of Wojtowicz's Argument on Optimal Dissection of a Unit Square
Op Art Motifs on Quadrilaterals
Ammann Tiling A1
Dissection of a Spherical Square into a Spherical Lune
Dissection of a Spherical Triangle into a Square
Roulette (Hypotrochogon) of a Circle Rolling inside a Regular Polygon
Dissection and Reassembly of Parallelogram of Given Base and Altitude
Roulette (Hypotrochogon) of a Polygon Rolling inside Another Polygon
Roulette (Epitrochogon) of a Regular Polygon Rolling around Another Regular Polygon
Roulette (Epitrochogon) of a Disk Rolling around a Regular Polygon
Rolling a Polygon on a Circle
Factory for Frac-tiles of Order Four
Two Equidecomposable Triangles
Dissection of Three Regular Spherical Pentagons into Five Equilateral Spherical Triangles
Swing-and-Twist Hinged Dissection of One Regular Heptagon into Seven
Regular Spherical Polygons
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