For any tetrahedron there exists a sphere (called the circumsphere) on which all four vertices lie, and another sphere (the insphere) tangent to the tetrahedron's faces.

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Wikipedia contributors. (2024, February 2). Tetrahedron. In Wikipedia, The Free Encyclopedia. Retrieved March 7, 2024, from https://en.wikipedia.org/w/index.php?title=Tetrahedron&oldid=1202240527

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https://github.com/davepinch/pinchy.cc/blob/master/content/topics/mathematics/shapes/tetrahedron/sphere/en.wikipedia.org.snippet-5-1.md

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Bothell East, Washington (Wikipedia) Bothell East is a census-designated place (CDP) in Snohomish County, Washington, United States. The population was 8,018 at the 2010 census. Bothell East is one of several CDPs that were created out of the former North Creek CDP in 2010.

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Tetrahedron (Wikipedia) In geometry, a tetrahedron (pl.: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertices. The tetrahedron is the simplest of all the ordinary convex polyhedra.

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tetrahedron

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