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Solid Geometry
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Demonstrations 41  60 of 560
Tiling with Spherical Triangles of Area Pi
Menelaus' and Ceva's Theorem for Spherical Triangle
Colored Spherical Projections of Polyhedra
Parallelepiped with Edges on Three Skew Lines
Spherical Right Triangles
Spherical Cap and Ring
Intersection of a Plane and a Tetrahedron
Completing a Tetrahedron to a Parallelepiped
Dissection of a Spherical Triangle into Three Spherical Triangles around a Spherical Hexagon
Four Theorems on Spherical Triangles
Dissection of a Spherical Equilateral Triangle into Three Isosceles Triangles
Relations between Plane Angles and Solid Angles in a Trihedron
Supplementary Solid Angles for Trihedron
Regular Spherical Polygons
Regular Tetrahedra Formed by Lattice Points Equidistant from the Origin
Fate of the Euler Line and the NinePoint Circle on the Sphere
Spherical Law of Sines
Spherical Law of Cosines
Sines of the Dihedral Angles of a Tetrahedron
Op Art on a Sphere
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