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Discrete Mathematics
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Demonstrations 61  80 of 1194
The Nine 10_3 Configurations
The Catenax Puzzle
Filling Space with Tetrahedra and HalfSize Octahedra
Mazes on Polyhedra Maps
Spanning Tree of Points on Sphere
Padovan's Spiral Numbers
Graphs of Random Permutations
Permutations, kPermutations and Combinations
Euler's Polyhedral Formula
Freese's Dissection of a Regular Pentadecagon into Two
Freese's Dissection of a Regular Dodecagon into a Regular Hexagon and the Reverse
Variant of Freese's Nonagonal Double Ring Expansion
Freese's Dissection of a Regular Decagon into Five
Freese's Dissection of a Regular Dodecagon into Three Congruent Squares
Freese's Dissection of a Regular Dodecagon into Two Equilateral Triangles
Freese's Dissection of Three Squares into Four Regular Dodecagons
Freese's Dissection of a Regular Nonagon into Two
Freese's Dissection of a Regular Octagon into Nine
Freese's Dissection of a Regular Pentagon to a Square
Freese's Dissection of Two Regular Pentagons into a Square
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