The Triangular Bipyramid

The triangular bipyramid is the 12th Johnson solid (J12). It has 5 vertices, 9 edges, and 6 faces (6 equilateral triangles).

The triangular bipyramid

The triangular bipyramid can be constructed by attaching two tetrahedra to each other.

If a triangular prism is inserted between the two constituent tetrahedra, an elongated triangular bipyramid (J14) is produced.


Here are some views of the triangular bipyramid from various angles:

Projection Envelope Description

Top view.


Side view.


Front view.


The Cartesian coordinates of the triangular bipyramid with edge length 2 are:

Last updated 18 Jun 2019.

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