5
An octohedron has eight faces, all of which are triangles.
it's called and Octohedron.
OCTOHEDRON
Octohedron, or rhomboid.
An octohedron, or diamond
An octohedron
Octohedron, or diamond
Octohedron
An octahedron (not octohedron) is a polyhedron with 8 faces. There are 257 distinct topological octahedrons and the number of vertices and edges varies.For example, an octahedron in the form of a quadrilateral based bipyramid has only 12 edges whereas a hexagonal prism has 18.
It can have. There are 257 different octahedra and some of them have rectangular or square faces. See the attached link for some of the 257.
six
6