Paper Models of Polyhedra
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Paper Models of Star Pyramids
Pentagrammic Pyramid (low):
Number of faces: 6
Number of edges: 10
Number of vertices: 6
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Pentagrammic Pyramid (high):
Number of faces: 6
Number of edges: 10
Number of vertices: 6
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Hexagrammic Pyramid (low):
Number of faces: 7
Number of edges: 12
Number of vertices: 7
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Tetragonal Star:
Number of faces: 9
Number of edges: 16
Number of vertices: 9
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Pentagonal Star Pyramid:
Number of faces: 11
Number of edges: 20
Number of vertices: 11
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Pentagonal Star Pyramid (irragular):
Number of faces: 11
Number of edges: 20
Number of vertices: 11
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Hexagonal Star Pyramid:
Number of faces: 13
Number of edges: 24
Number of vertices: 13
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Octagonal Star Pyramid:
Number of faces: 17
Number of edges: 32
Number of vertices: 17
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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 model:
Selection of pyramids
   
Español: pirámides de estrella
Copyrights © 1998-2009 Gijs Korthals Altes All rights reserved.
It's permitted to make copies for non-commercial purposes only.
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