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Demonstrations 21 - 40 of 229
The Pedal and Antipedal Triangles
Nearest in a Crowd
Exact Trilinear Coordinates
Set of Points Equidistant from Two Points in Taxicab Geometry
Length of an Arc of an Ellipse and the Area It Subtends
A Geometric Limit Problem
The Sum of Two Counter-Rotating Circular Vectors Is an Ellipse
Largest Disk in a Convex Polygon
Problems on Circles V: External and Internal Common Tangents
Generating Points with Uniform Density in a Triangle, Parallelogram, or Disk
Separating Points by a Line or Parabola
Testing a Polygon for Convexity and Self-Intersection
A General Cone
Elastic Collision of Two Disks
Locating the Complex Roots of a Quadratic Equation
Paths through a Grid
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