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Demonstrations 5141  5160 of 6635
Proof of Proposition 28, Book XI, Euclid's Elements
Another Dissection of Two Rhombic Solids into an Icosidodecahedron and a Rhombicosidodecahedron
Probabilities of Combinations
Dissection of the Oblate Golden Rhombohedron
Chains of Amicable Numbers
Integer Trig Hunt
Cycles in Sums of Prime Factors
Napoleon's Theorem
Gibbs Phenomena for 1D Fourier Series
Area of a Parallelogram
Enumerating the Directed Graphs
Definitions of Hill's Tetrahedra
Fagnano's Problem
Bankoff Circle
SixPiece Dissection of Hill's Tetrahedron of Type 3 into a Triangular Prism
Cutting Polygons
Ptolemy's Theorem
Lorenz Attractor
FourPiece Dissection of Hill's Tetrahedron of Type 2 into a Triangular Prism
Dissection of Hill's Tetrahedron of Type 1
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