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Jaime RangelMondragon
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Demonstrations 181  200 of 227
A Polygon from Its Midpoints
Problems on Circles XI: Perpendicular Tangents to an Ellipse
Recursive Exercises IX: Gothic Windows
Yates's Trisector
Inversive Geometry IV: Inverting a Point with a Compass in Three Steps
Copernicus's Theorem
Rolling Polygons
Folding an Equilateral Triangle in a Square
Generating a Lemniscate II: Rotating Line
The Malfatti Problem
Enumerating Pythagorean Triangles
Square Passing through Four Points
Two Circular Windows
Problems on Circles X: Tangent Circles Generate Ellipses
Binary Numbers, Subsets and Compositions
Problems on Circles VIII: A Spiral of Circles
A Gothic Window
The Puzzle of the Two Bridges
The Puzzle of the Bridge
Crisscrossing a Polygon
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