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Geometry
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Demonstrations 2421  2440 of 3231
Distance between Two Points
Dirac Matrices in Higher Dimensions
The Sum of the Exradii Minus the Inradius
Three Ways to Fold a Net into a Snub Disphenoid
Product of Two LeviCivita Tensors with Contractions
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
Gauss Code Loops
Dissecting a Hexagon into Four Smaller Hexagons
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