English Triangular prism Cited by user Dedhert.Jr on 29 Feb 2024 In geometry, a triangular prism is a three-sided prism; it is a polyhedron made of a triangular base, a translated copy, and 3 faces joining corresponding sides.
English Triangular bipyramid Cited by user Dedhert.Jr on 05 Feb 2024 In geometry, the triangular bipyramid is the hexahedron with six triangular faces, constructed by attaching two tetrahedrons face-to-face.
English Bipyramid Cited by user Dedhert.Jr on 24 Jan 2024 A (symmetric) n-gonal bipyramid or dipyramid is a polyhedron formed by joining an n-gonal pyramid and its mirror image base-to-base.