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Polygons
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Demonstrations 21  40 of 486
Constructing a Regular Heptagon Using Lill's Method
Constructing a Regular Heptadecagon (17gon) with Ruler and Compass
Constructing a Square with Sticks of Equal Length
Rotating Square Tilings
Outer Billiards on Regular Polygons
Sum of the Squares of the Sides of a Projected Regular Tetrahedron
Roulette (Hypotrochogon) of a Polygon Rolling inside a Circle
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
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