Type Uniform polyhedron Vertices 14 Wythoff symbol |2 2 7/4 | Edges 28 Vertex configuration /4.3.3.3 | |
 | ||
Faces 2 Heptagrams
14 triangles | ||
In geometry, the heptagrammic crossed-antiprism is one in an infinite set of nonconvex antiprisms formed by triangle sides and two regular star polygon caps, in this case two {7/3} heptagrams.
It differs from the heptagrammic antiprism (7/3) by having opposite orientations on the two heptagrams.
References
Heptagrammic crossed-antiprism Wikipedia(Text) CC BY-SA