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Geometry
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Demonstrations 2301  2320 of 2831
Taking Apart a Cube
Equidecomposition of a Rhombohedron, Hexagonal Prism, and a Rhombic Dodecahedron
Tiling Space with a SchmittConway Biprism
Dissection of a Rhombohedron into a Right Prism with the Same Base
The Perpendicular Bisector of a Chord
Stengel's Theorem
Pedal Triangles of Isogonal Conjugates
Dissection of a Pentagonal Antiprism into a Metabidiminished Icosahedron
Hinged and Translational Dissection of Two Squares to One
Circular Coverings
The Carpets Theorem
The Midpoint Quadrilateral Theorem
The Two Triangles Theorem
Dissection of Three Rhombic Solids into an Icosahedron, a Dodecahedron, and an Icosidodecahedron
FourPiece Dissection of Juel's Pyramid to a Prism
The rDistribution
Two Convex Polyhedra with the Same Net
Euler's Theorem for Pedal Triangles
A Theorem about Two Tangent Circles
ThreePiece Dissection of a Hill Tetrahedron into a Triangular Prism
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