| Parabiaugmented truncated dodecahedron | |
|---|---|
| | |
| Type | Johnson J68 – J69 – J70 |
| Faces | 3×10 triangles 10 squares 2 pentagons 10 decagons |
| Edges | 120 |
| Vertices | 70 |
| Vertex configuration | 2×10+20(3.102) 10(3.4.5.4) 20(3.4.3.10) |
| Symmetry group | D5d |
| Dual polyhedron | - |
| Properties | convex |
| Net | |
| | |
In geometry, the parabiaugmented truncated dodecahedron is one of the Johnson solids (J69). As its name suggests, it is created by attaching two pentagonal cupolas (J5) onto two parallel decagonal faces of a truncated dodecahedron.
A Johnson solid is one of 92 strictly convex polyhedra that are composed of regular polygon faces but are not uniform polyhedra (that is, they are not Platonic solids , Archimedean solids , prisms , or antiprisms ). They were named by Norman Johnson , who first listed these polyhedra in 1966. [1]