Smithsonian museums continue to be closed to support the effort to contain the spread of COVID-19. Read a message from our director, and check our website and social media for updates.

Polyhedron Model by Martin Berman, Triaugmented Truncated Dodecahedron

Polyhedron Model by Martin Berman, Triaugmented Truncated Dodecahedron

<< >>
Usage conditions apply
This model is an "augmentation" of a truncated dodecahedron. On three decagonal faces, the decagon serves as the base of a figure with a regular pentagon on top and five square and five triangular sides. The faces of the model total of thirty-five equilateral triangles faces, fifteen squares, three regular pentagons, and nine regular decagons.
On Berman's models of regular-faced convex polyhedra, see 1978.1065.01.
Currently not on view
Object Name
geometric model
date made
Berman, Martin
place made
United States: Pennsylvania, Pittsburgh
Physical Description
paper (overall material)
overall: 26.5 cm x 32 cm x 34 cm; 10 7/16 in x 12 19/32 in x 13 3/8 in
ID Number
accession number
catalog number
Credit Line
Gift of Martin Berman
Regular-Faced Convex Polyhedra
See more items in
Medicine and Science: Mathematics
Berman Models
Science & Mathematics
Data Source
National Museum of American History
Nominate this object for photography.   

Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.

If you would like to know how you can use content on this page, see the Smithsonian's Terms of Use. If you need to request an image for publication or other use, please visit Rights and Reproductions.

Note: Comment submission on our collection pages is temporarily unavailable. Please check back soon!

If you have a question or require a personal response, please visit our FAQ or contact page.