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Geometry
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Demonstrations 2301  2320 of 3623
Enveloping the Oloid
Segment Intersection
Necker Cube: A Variation
Generating a Hyperboloid by Rotating a Line
Regular Polygon Maker
Dissection Proof of the Addition Formula for Sines
FermatWeber Point of a Polygonal Chain
Two Types of Hexagonal Polyominoes Counted by Area and Number of Columns
Lines from a Point to All the Points of a Circle
How Many Right Triangles Can You Find?
The Medians of a Triangle Divide It into Three Smaller Triangles of Equal Area
Dissection of a Pentagon to Almost a Square
de Casteljau Algorithm for a TensorProduct Bézier Surface
Approximating Spheres with Boxes
Experimenting with the Ulam Spiral
Trisectors and Circumcircles
Approximating Circles with Pixels
Fermat's Last Theorem and Lattice Points
Pompeďu's Theorem
Packing a Circle with Circles
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