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Solid Geometry
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Demonstrations 21  40 of 458
Volume of a Wedge in a Cylinder
Truncating a Right Square Pyramid
Parallel Axis Theorem for a Solid Cylinder
A Sequence of Inscribed Platonic Solids
Reshetov's Unistable Polyhedra with 14, 15, 16, and 17 Faces
Menger Sponge Slices
A OneParameter Family of Polyhedra with Two Kinds of Symmetries
Constructing Vector Geometry Solutions
Dissection of Two Stellated Dodecahedra
26Piece Dissection of a Cube
Dissection of a Concave Rhombic Triacontahedron
Dissection of a Cube to a Quarter of a Rhombic Dodecahedron of the Second Kind
Fractal Tetrahedron in an Octahedron
Two Proofs that the Volume of the Regular Octahedron Is Four Times the Volume of the Regular Tetrahedron
80 Golden Rhombohedra
Symmetries of a Prism
Proposition 30, Book XI, Euclid's Elements
Proposition 29, Book XI, Euclid's Elements
Kaleidocycles
Inverting the Rhombic Dodecahedron
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