A pentagrammic antiprism is a type of geometric solid that belongs to the family of antiprisms. Specifically, it is a variation in which the two polygonal bases are pentagrams (star polygons with five points) instead of the regular polygons found in standard antiprisms. ### Properties of a Pentagrammic Antiprism: 1. **Faces**: It has 10 triangular lateral faces that connect the vertices of the two pentagram bases.
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