A pentagonal prism has 7 faces.
There is no regular solid with 13 faces.
A decaredra is the ten face solid figure.
octahedron
They are faces the polyhedron.
The solid shape that has one square face and four triangular faces is called a pyramid. If you were to have a shape that had four triangular faces and no square face, it would be called a triangular pyramid.
A solid figure with twenty faces is called an Icosahedron.
The regular solid, with 20 identical equilateral triangular faces, is called an icosahedron.
A polyhedron with 20 faces is called an icosahedron.
There is no regular solid with 13 faces.
A four-faced solid is called a tetrahedron.
A polyhedron with 20 faces is called an icosahedron.
A solid with five or more faces is a pentagonal prism. It has two pentagonal faces and five rectangular faces, totaling seven faces. Other examples include a cube (6 faces) and a pyramid with a square base (5 faces).
It is called a hexagon because it has six faces and also six vertexes.
They are called faces of the polyhedron.
That's called a Decagon.
It is called a Nonagon.
A tetrahedron.