Not necessarily. A heptagon-based pyramid is an octahedron and it has no parallel faces.
its has parallel faces and edges
Well, darling, an octahedron has 12 edges and 8 faces. So, to answer your question, it has zero parallel edges and faces. But hey, who needs parallel when you've got those sharp angles and sleek lines?
There are 257 topologically different convex octahedra. Many of these will have no parallel faces. It can have four pairs of parallel faces.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. In most cases there will be no parallel faces but there can be four pairs of parallel faces.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. Some of these have no parallel edges whereas a right hexagonal prism has 4 pairs of parallel faces.
a octahedron has 8 faces
An octahedron.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. Whether or not anything is parallel depends on which of these octahedra you have in mind and, furthermore, which version.For example, the general hexagonal prismoid will have nothing in parallel. But a special case of the same topological octahedron, a right hexagonal prism, has 4 pairs of parallel faces. It also has three quartets and one sextet of edges that are parallel.
octahedron
Octahedron- A polyhedron with eight faces. All faces of a regular octahedron are congruent, equilateral triangles.
A regular octahedron.
A truncated octahedron has 14 faces.