Elongated pentagonal orthobicupola
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| Elongated pentagonal orthobicupola | |
|---|---|
 |
|
| Type | Johnson J37 - J38 - J39 |
| Faces | 10 triangles 20 squares 2 pentagons |
| Edges | 60 |
| Vertices | 30 |
| Vertex configuration | 10 of 3.4.5.4 20 of 3.43 |
| Symmetry group | - |
| Dual polyhedron | - |
| Properties | convex |
In geometry, the elongated pentagonal orthobicupola is one of the Johnson solids (J38). As the name suggests, it can be constructed by elongating a pentagonal orthobicupola (J30) by inserting a pentagonal prism between its two congruent halves. Rotating one of the cupolae through 36 degrees before inserting the prism yields an elongated pentagonal gyrobicupola (J39).
The 92 Johnson solids were named and described by Norman Johnson in 1966.
