Truncation (geometry)

In geometry, a truncation is an operation in any dimension that cuts polytope vertices, creating a new facet in place of each vertex. The term originates from Kepler's names for the Archimedean solids.


Truncated square is a regular octagon:
t{4} = {8}
=

Truncated cube
t{4,3} or

Truncated cubic honeycomb
t{4,3,4} or
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