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Demonstrations 1 - 20 of 1319
Area of a Triangle on an Integer Grid
New this week
GeometricScene Triangle Centers
New this month
Generating an Ellipse Using Steiner's Method
Finding a Tangent Line to a Parabola
The Broken Chord of Archimedes
Cumulative Area under a Cycloid versus the Area of Its Rolling Circle
Penrose Rhombus Tilings by Projecting Golden Rhombi 2
Path of an Ant on the Diameter of a Rolling Circle
A Visual Proof of Viviani's Theorem
Path of an Ant on the Diameter of a Circle Rotating on the Unit Circle
A Lemma in Geometry Concerning Points Generated by the Incircle of a Triangle
Dissecting One Isonona Triangle into Two
Isonona Triangles for 3D Printing
First Fermat Point and Isogonic Center of a Triangle
Apollonian Edge Circles
A Visual Proof of Ptolemy's Theorem
Concurrence of the Median, a Chord and a Diameter of the Incircle
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