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It is a Dodecahedron!
The faces of Platonic solids are regular polygons...
Regular pentagons.
dodecahedron
A dodecahedron.
It is a Dodecahedron!
Twelve regular pentagons comprise the faces of a dodecahedron.
triangles, squares and pentagons.
The faces of Platonic solids are regular polygons...
Regular pentagons.
Dodecahedron
The shape of the 12 faces of a regular dodecahedron are regular pentagons.
A dodecahedron. A dodecahedron is any polyhedron with twelve faces, but usually a regular dodecahedron is meant. It is a Platonic solid composed of twelve regular pentagonal faces, with three meeting at each vertex. It has twenty (20) vertexes and thirty (30) edges. The dodecahedron would be the Platonic solid with the largest volume if all were made with edges of the same length.
If you are thinking of a solid with pentagonal faces, a dodecahedron, there are twelve pentagons
The polygons are the equilateral triangle, the square, and the regular pentagon. The faces of these platonic solids are made from the following polygons: tetrahedron - 4 triangles cube - 6 squares octahedron - 8 triangles dodecahedron - 12 pentagons icosahedron - 20 triangles
I assume you mean a regular dodecahedron. A regular dodecahedron has twelve faces, each of which are regular* pentagons. *(all sides are congruent, all angles are congruent)
It is a dodecahedron - a shape with 12 faces which are regular pentagons.