A polyhedron is a solid figure with many plane faces, usually greater than six. A polyhedron that has 7 faces is called a heptahedron.
A pentahedron.
It is called a face of the polyhedron.
A 2D seven sided figure is called a heptagon. A 3D seven faced polygon is called a heptahedron.
They are the faces of the polyhedron.
A regular octahedron.
A polyhedron is a solid figure with many plane faces, usually greater than six. A polyhedron that has 7 faces is called a heptahedron.
A pentahedron.
If a solid, it is called a "Polyhedron". If just lines in three dimensions, its called a "Three Dimensional Polygon". Polyhedron derives from Greek words for "many faced" or "many sided". Polygon derives from "many angles"
An 8-faced 3D shape is called an octahedron. It is a polyhedron with eight triangular faces, 12 edges, and six vertices.
A tetradecachedron is a polyhedron, also known as a 14-sided polyhedron or 14-faced polyhedron. It is a convex solid with 14 faces, 24 edges, and 14 vertices. The term "tetradecachedron" can refer to any 14-faced polyhedron, not necessarily a specific shape.
It is called a face of the polyhedron.
It could be a non-polyhedral shape. If it is a polyhedron, it can be a quadrilateral based pyramid or a triangle based prism.
A dodecahedron is a twelve-faced polyhedron.
A 2D seven sided figure is called a heptagon. A 3D seven faced polygon is called a heptahedron.
It is a face of the polyhedron
They are the faces of the polyhedron.