A hyperbolic version of the Euclidean tetrahedron.
Hyperbolic Tetrahedron
See also
Hyperbolic Cube, Hyperbolic Dodecahedron, Hyperbolic Icosahedron, Hyperbolic Octahedron, Reuleaux TetrahedronExplore with Wolfram|Alpha
References
Rivin, I. "Hyperbolic Polyhedra Graphics." http://library.wolfram.com/infocenter/Demos/4558/.Trott, M. "The Cover Image: Hyperbolic Platonic Bodies." §8.3.10 in The Mathematica GuideBook for Graphics. New York: Springer-Verlag, 2004. http://www.mathematicaguidebooks.org/.Referenced on Wolfram|Alpha
Hyperbolic TetrahedronCite this as:
Weisstein, Eric W. "Hyperbolic Tetrahedron." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/HyperbolicTetrahedron.html