Assertion: tetrahedron | /r/HasProperty | tetrahedra
Facets:
Source sentences:
text: TETRAHEDRON (tetrahedra) Pronunciation (US): (GB): IPA (US): Irregular inflected form: tetrahedra
text: In geometry, a Tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners.
text: Tetrahedron, Tetrapod (structure), Tetrahedral number