Assertion: polyhedron's face | /r/HasProperty | truncated
Facets:
Source sentences:
text: Shallow truncation - Edges are reduced in length, faces are truncated to have twice as many sides, while new facets are formed, centered at the old vertices.
text: - Edges are reduced in length, faces are truncated to have twice as many sides, while new facets are formed, centered at the old vertices.