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Demonstrations 41 - 60 of 1019
Trisecting an Angle Using the Cycloid of Ceva
The Sum of the First n Odd Numbers
Concave Random Quadrilaterals from Four Points in a Disk
Three Coalescing Soap Bubbles
The Begonia Point
An Application of the Gergonne-Euler Theorem
Obtuse Random Triangles from Three Parts of the Unit Interval
Obtuse Random Triangles from Three Points in a Rectangle
The Sum of Two Counter-Rotating Circular Vectors Is an Ellipse
Using Irrational Square Roots to Create Planar Walks
Largest Disk in a Convex Polygon
The Banach-Tarski Paradox
Polygons on n Vertices
Cross Sections of Three Solids
Problems on Circles V: External and Internal Common Tangents
Separating Points by a Line or Parabola
Testing a Polygon for Convexity and Self-Intersection
Equal Cores and Shells in Circles and Spheres
An Example of the Bolyai-Gerwien Theorem
Three Equal Segments from the Altitudes of a Triangle
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