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Recreational Mathematics
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Demonstrations 121  140 of 1064
Frederickson's Dissection of a Regular Dodecagon into Two Congruent Regular Dodecagons
Theobald's Dissection of One Regular Octagon into Two
The 196 Algorithm, ReorderandAdd Algorithm, and RATS Sequence in Different Bases
Kakeya Needle Problem
Frederickson's Second Dissection of an Octagon to Five Octagons
Golomb Rulers and Fibonacci Sequences
Frederickson's Hinged Dissection of Five Decagons to One
Lindgren's Symmetrical Decompositions of Regular 2nGons
All 11 Folding Nets of the Regular Octahedron
All 11 Folding Nets of the Cube
Frederickson's Dissection of an Octagon to Five Octagons
Olympic Logos Based on Hanegraaf's Dissection of a Dodecagon to Five Dodecagons
Another Hinged Dissection of One Pentagon to Five Pentagons
Logos Based on a Dissection of One Pentagon to Five Pentagons
Freese's Dissection of Four Equilateral Triangles into One
NowhereNeat Tilings of the Plane
From the Tether Problem to the Involute of a Circle
The Golden Ratio in Arrangements of Octahedron, Cube, Tetrahedron, and Sphere
Bicolor Towers of Hanoi
Penrose's Train Challenge
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