The augmented dodecahedron is Johnson solid , which is formed from augmentation of one of the faces of the regular dodecahedron by an equilateral pentagonal pyramid. It consists of five equilateral triangles and 11 regular pentagons. The solid and net are illustrated above.

It is implemented in Wolfram Language as `PolyhedronData`[`"AugmentedDodecahedron"`]
or `PolyhedronData`[`"Johnson"`, 58].