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Geometry
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Demonstrations 1  20 of 3714
Projected Area of a Cuboid
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Ruler and Compass Construction of a Square with Doubled Area
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Shortest Distance between Two Skew Lines
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Apollonian Circle Packings via Möbius Transformations of Hyperbolic Polygons
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Parallel Lines Have the Same Slope
Right Tetrahedron: de Gua Theorem
Midpoint and Centroid Formulas
Approximating Pi Using Inscribed and Circumscribed Circles of Regular Polygons
SpaceFilling Fractal Curves
Wedging an Angle between Two Circles Produces a Limaçon
Centroids of Triangles with Vertices on the Unit Circle
Twisted Surfaces of Revolution
Coinciding Faces of Six Archimedean Solids
Cubes on a Rhombic Hexecontahedron
Drawing a Regular Polygon
Assembling a Golden Great Rhombicosidodecahedron
Golden Truncated Icosahedron
Rhombic Enneacontahedron Sandwich
Exploring Cylindrical Coordinates
EqualArea Parallelograms Using Determinants
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