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Polyhedra
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Demonstrations 1  20 of 663
Op Art on Golden Rhombic Solids
New this month
The Double SubdivisionNetwork Method
New this month
A Shapeshifting Flexible Frame
Perspective Projection of a Cube onto a Plane
Dissection of Gerwien's Triangle into a Saccheri Quadrilateral on the Sphere
Orthogonal Projections of the Edges of a Cube
Monge Point of a Tetrahedron
Three Planes in a Trihedron
Inscribed and Circumscribed Spheres of a Tetrahedron
Two Conditions for a Tetrahedron to Be Orthocentric
Open Flexible Frame Based on a Rhombic Dodecahedron
A OneParameter Family of Zonohedra
Theorem on the Dihedral Angles of an Isosceles Tetrahedron
Properties of Isosceles Tetrahedra
RightAngled Tetrahedron
Construct a Dihedral Angle of a Tetrahedron Given Its Plane Angles at a Vertex
Altitude of a Tetrahedron Given Its Edges
Colored Spherical Projections of Polyhedra
Parallelepiped with Edges on Three Skew Lines
Intersection of a Plane and a Tetrahedron
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