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Demonstrations 1 - 20 of 617
Area of a Triangle on an Integer GridGeometricScene Triangle CentersEisenstein TriplesA Visual Proof of Viviani's TheoremSubstitution Tilings
Area of a Triangle on an Integer Grid
New this week
GeometricScene Triangle Centers
New this month
Eisenstein Triples
A Visual Proof of Viviani's Theorem
Substitution Tilings
A Lemma in Geometry Concerning Points Generated by the Incircle of a TriangleIso-n TrianglesDissecting One Isonona Triangle into TwoIsonona Triangles for 3D PrintingIsonona Triangles
A Lemma in Geometry Concerning Points Generated by the Incircle of a Triangle
Iso-n Triangles
Dissecting One Isonona Triangle into Two
Isonona Triangles for 3D Printing
Isonona Triangles
Isopenta TrianglesIsohepta TrianglesRecursive Pythagorean TreeFirst Fermat Point and Isogonic Center of a TriangleConcurrence of the Median, a Chord and a Diameter of the Incircle
Isopenta Triangles
Isohepta Triangles
Recursive Pythagorean Tree
First Fermat Point and Isogonic Center of a Triangle
Concurrence of the Median, a Chord and a Diameter of the Incircle
A Concurrence Based on Ellipses through the IncenterAreas of Squares from the Pedals of a TriangleArea of an Inscribed Triangle in Terms of the Product of Its SidesVisual Derivation of a Trigonometric IdentityA Circle Defined from an Equilateral Triangle via Pythagoras
A Concurrence Based on Ellipses through the Incenter
Areas of Squares from the Pedals of a Triangle
Area of an Inscribed Triangle in Terms of the Product of Its Sides
Visual Derivation of a Trigonometric Identity
A Circle Defined from an Equilateral Triangle via Pythagoras

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