If you are thinking of a solid with pentagonal faces, a dodecahedron, there are twelve pentagons
a 3D pentagon
A pentagonal prism will have 15 edges.
a pentagonal pyramid or a pentagonal prisim
A pentagon is a 2 dimensional object. The 3 dimensional object, with 12 pentagonal faces, is called a dodecahedron.
Many 3d shapes have a corner.
The 3D shape formed by regular pentagons is a dodecahedron, which has 30 edges.
It is a dodecahedron - a shape with 12 faces which are regular pentagons.
I'm assuming you mean a 3-d shape with faces of pentagons. This is called a Dodecahedron
A pentagon is a plane figure and has only two dimensions. It cannot have three dimensions.
A dodecahedron is a 3-d shape with 12 faces that are regular pentagons.
a 3D pentagon
A regular 3-d figure formed from pentagons is a dodecahedron (12 faces). However, a soccer ball is not a 3-d shape formed from only regular pentagon. Instead it comprises 12 regular pentagons (usually black) and 20 regular hexagons (white).
Tessellation is covering a 2-d surface. Tessellation and making a 3-d shape are not compatible processes. 12 regular pentagons will form a dodecahedron.
15
2
The vertex of a 3D pentagon is 10. :)
A 3D name for a pentagon is a pentagonal prism.