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Demonstrations 5361  5380 of 6801
Pedal Triangles of Isogonal Conjugates
Nutts Puzzle
Preferred Values of Collatz Paths
A Signed Rank Test of Hypotheses about a Median
Why a Number Is Prime
Distribution of Palindromes in Base b
Dissection of a Pentagonal Antiprism into a Metabidiminished Icosahedron
Solitons from the Kortewegde Vries Equation
Hinged and Translational Dissection of Two Squares to One
The Eigenvectors of a Random Graph
Circular Coverings
The Carpets Theorem
Normal Modes of a Circular Drum Head
The Midpoint Quadrilateral Theorem
The Two Triangles Theorem
Dissection of Three Rhombic Solids into an Icosahedron, a Dodecahedron, and an Icosidodecahedron
Multiplication Flash Cards
FourPiece Dissection of Juel's Pyramid to a Prism
The rDistribution
Two Convex Polyhedra with the Same Net
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