An octagrammic antiprism is a type of polyhedron that belongs to the category of antiprisms. Specifically, it is characterized by its regular octagram faces and a two-layer structure, similar to that of a traditional antiprism. ### Key Characteristics: 1. **Faces**: The octagrammic antiprism has two parallel octagram faces (eight-pointed stars) and additional rectangular faces connecting each edge of one octagram to the corresponding edge of the other.
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