The Triaugmented Triangular Prism

The triaugmented triangular prism (J51) is the 51st Johnson solid. It has 9 vertices, 21 edges, and 14 triangular faces.

A triaugmented triangular

It can be constructed augmenting a triangular prism with 3 square pyramids. If only two square pyramids are added, the biaugmented triangular prism (J50) is produced. If only one square pyramid is added, the result is the augmented triangular prism (J49).


Here are some views of the triaugmented triangular prism from various angles:

Projection Envelope Description

Top view.


Side view.


Front view.


The Cartesian coordinates of the triaugmented triangular prism, centered on the origin and with edge length 2, are:

Last updated 22 Mar 2019.

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