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Demonstrations 5281  5300 of 7213
Dirac Matrices in Higher Dimensions
Permutation Notations
The Sum of the Exradii Minus the Inradius
Three Ways to Fold a Net into a Snub Disphenoid
Sum of an Arithmetic Progression
Product of Two LeviCivita Tensors with Contractions
Most Common Angles
Ceva's Theorem
A Triangle Inequality Involving the Altitudes, Semiperimeter, Inradius, and Circumradius
Triangle Altitudes and Inradius
Angle Bisectors in a Triangle
Inscribing Four Circles in a Triangle
Routh's Theorem
Stewart's Theorem
The Semiperimeter and Tangents to Excircles
A Line Parallel to a Side of a Triangle
The Distance to the Orthocenter from a Vertex
Two Midpoints of a Trapezoid
Angular Displacement
Curvature and Torsion
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