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Ptolemy's Theorem for Cyclic Quadrilaterals
Author:
Steve Phelps
Topic:
Quadrilaterals
GeoGebra
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Tube at distance of a 3D curve.
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Pendulum Snake
Trophy (version 2)
Vector Valued Functions
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Escher's Lizard Tessellation Investigation
UnMessUpAbleSquare
indifference curve
Divergence and Curl of 2D vector field
Area of Rectangle
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Geometry
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Prism