Elongated pentagonal orthobicupola
- Elongated pentagonal orthobicupola
Infobox Polyhedron
Polyhedron_Type=Johnson
"J"37 - J38 - J39
Face_List=10 triangles
2.5+10 squares
2 pentagons
Edge_Count=60
Vertex_Count=30
Symmetry_Group="D"5h
Vertex_List=20(3.43)
10(3.4.5.4)
Dual=-
Property_List=convex
In geometry, the elongated pentagonal orthobicupola is one of the Johnson solids ("J"38). As the name suggests, it can be constructed by elongating a pentagonal orthobicupola ("J"30) by inserting a decagonal prism between its two congruent halves. Rotating one of the cupolae through 36 degrees before inserting the prism yields an elongated pentagonal gyrobicupola ("J"39).
The 92 Johnson solids were named and described by Norman Johnson in 1966.
External links
* [http://mathworld.wolfram.com/JohnsonSolid.html Johnson Solid -- from MathWorld]
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Elongated pentagonal gyrobicupola — Infobox Polyhedron Polyhedron Type=Johnson J 38 J39 J40 Face List=10 triangles 2.10 squares 2 pentagons Edge Count=60 Vertex Count=30 Symmetry Group= D 5d Vertex List=20(3.43) 10(3.4.5.4) Dual= Property List=convexIn geometry, the elongated… … Wikipedia
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