An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. The number of perpendicular faces will depend on which particular octahedron you have in mind. The heptagon-based pyramid, for example, has none.
a octahedron has 8 faces
A truncated octahedron has 14 faces.
An octahedron has 8 sides.An octahedron is a polyhedron with eight plane faces.
Sides and faces are the same thing, and an octahedron has eight.
An octahedron has eight faces - by definition.
4
An octahedron has 7 perpendicular lines.
a octahedron has 8 faces
A truncated octahedron has 14 faces.
An octahedron has 8 sides.An octahedron is a polyhedron with eight plane faces.
An octahedron has eight faces. If it has 62 faces then it is not an octahedron!
Sides and faces are the same thing, and an octahedron has eight.
An octahedron has eight faces - by definition.
In geometry, an octahedron is a polyhedron with eightfaces.
An octahedron has eight bases/faces.
An octahedron has 8 sides.
Eight.