Augmented dodecahedron

In geometry, the augmented dodecahedron is one of the Johnson solids ($J57 – J58 – J59$), consisting of a dodecahedron with a pentagonal pyramid ($C5v$) attached to one of the faces. When two or three such pyramids are attached, the result may be a parabiaugmented dodecahedron ($3.5(53) 5(32.52) 1(35)$), a metabiaugmented dodecahedron ($J58$), or a triaugmented dodecahedron ($J2$).