AI overview
I cannot write an accurate overview based solely on the image caption provided, as it contains no descriptive information about what a tetrahedron is or why it matters. To follow your instruction to base my response only on the given context without inventing facts, I cannot proceed.
AI-generated from the Wikipedia summary — may contain errors.
Article
25 sectionsContents
- Regular tetrahedron
- Irregular tetrahedra
- Disphenoid
- Orthoschemes
- Space-filling tetrahedra
- Fundamental domains
- Subdivision and similarity classes
- General properties
- Volume
- Algebraic approach
- Other approaches
- Analogous to a triangle
- Trigonometry and the space of all shapes
- Interior point
- Inradius
- Circumradius
- Circumcenter
- Integer tetrahedra
- Applications
- Related topics
- See also
- Notes
- References
- Bibliographies
- External links
thumb|A tetrahedron.
In geometry, a tetrahedron (: 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.