Various Forms of
Steiner Porism and Poncelet Porism


Steiner Porism on Sphere


4 and 2


2 Fixed, 3 Moving


Concurrency


Four Moving


Ex-circle


Inversion of Circles Inscribed in Faces of Square Cupola


Inversion of Circles Inscribed in Faces of Cuboctahedron


Inversion of Circles Inscribed in Faces of Cuboctahedron


Poncelet Porism for Escribed-Inscribed Quadrilaterals


Inversion of Circles Inscribed in Faces of Pentagonal Cupola


Inversion of Circles Inscribed on Faces of Dodecahedron


Inversion of Circles Inscribed on Faces of Triangular Cupola


Poncelet Porism in 3D


Poncelet Porism for Quadrilaterals


Poncelet Porism with Spherical Quadrilateral


Poncelet Porism in 3D-Quadrilateral


Poncelet Porism on Cones


Concurrent, Collinear Properties


Poncelet Porism on the Sphere


Sphere Inversion

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