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Mathematics
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Demonstrations 5721  5740 of 7204
The Midpoints of Two Cevians
The Quadrilateral of Centroids
The Area of the Contact Triangle
Perpendiculars to a Chord
Dissection of a Cube into Two Kinds of Triacontahedra
The Minkowski Sum of Two Triangles
Floating Sphere
Successive Differences of Sequences
Theorem of the Owl's Eyes
Iterating Linear Functions
Dissection of Three Bilunabirotundas and a Dodecahedron into Rhombic Solids
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
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