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Paper Models of Star Pyramids

	Pentagrammic Pyramid (low): Number of faces: 6 Number of edges: 10 Number of vertices: 6
	Pentagrammic Pyramid (high): Number of faces: 6 Number of edges: 10 Number of vertices: 6
	Hexagrammic Pyramid (low): Number of faces: 7 Number of edges: 12 Number of vertices: 7
	Tetragonal Star: Number of faces: 9 Number of edges: 16 Number of vertices: 9
	Pentagonal Star Pyramid: Number of faces: 11 Number of edges: 20 Number of vertices: 11
	Pentagonal Star Pyramid (irragular): Number of faces: 11 Number of edges: 20 Number of vertices: 11
	Hexagonal Star Pyramid: Number of faces: 13 Number of edges: 24 Number of vertices: 13
	Octagonal Star Pyramid: Number of faces: 17 Number of edges: 32 Number of vertices: 17

star pyramids (.PDF)
Pentagrammic pyramid (high) (.PDF)

Definition of a Pyramid: A pyramid is a polyhedron with one face (known as the "base") a polygon and all the other faces triangles meeting at a common polygon vertex (known as the "apex"). A right pyramid is a pyramid for which the line joining the centroid of the base and the apex is perpendicular to the base. A regular pyramid is a right pyramid whose base is a regular polygon. An n-gonal regular pyramid (denoted Yn) having equilateral triangles as sides is possible only for n=3, 4, 5. These correspond to the tetrahedron, square pyramid, and pentagonal pyramid, respectively.

Paper models:
Selection of pyramids
Truncated star pyramids

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