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Elongated pentagonal pyramid

Elongated pentagonal pyramid

In geometry, the elongated pentagonal pyramid is one of the Johnson solids. As the name suggests, it can be constructed by elongating a pentagonal pyramid by attaching a pentagonal prism to its base. Wikipedia
Dual polyhedron: self
Edges: 20
Faces: 5 triangles; 5 squares; 1 pentagon
Vertices: 11