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Finite or discrete collections of geometric objects. Packings, tilings, polyhedra, polytopes, intersection, arrangements, rigidity.

6 votes
1 answer
448 views

Dissecting a tetrahedron into orthoschemes

Is there a way to dissect any tetrahedron into a finite number of orthoschemes? I know that for a tetrahedron which only has acute angles, one can take the center of the inscribed circle and project …
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