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Plane Geometry
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Demonstrations 181 - 200 of 960
Tangent Circles to Two Parallel Lines and Passing through a Point
Sliding to the Fermat Point
The Sum of the Squares of the Distances to N Points
Cosine and Sine of the Sum of Two Angles
Rotating Polygons
Simple Programs in Turtle Geometry
n-Sectors of the Angles of a Triangle
Chord Diagrams for Motzkin Numbers
Approximate Area and Circumference of a Circle Using Isosceles Triangles
Ornamental Parametric Figures
Thales's Theorem: A Vector-Based Proof
Harmonograph
Constant-Sum Figures
Four Lines and Four Circumcircles
Coverage of a Unit Square by Random Discs
Fraction of a Circle Covered by Arcs of a Given Length
The Malfatti Squares
Ball Bearings
A Spider Walking on a Polygon
Tilson's Square-to-Pentagram Dissection
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