An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. An octahedron can have 6 to 12 vertices, and 12 to 18 edges.
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A vertex can be the corner of a polyhedron in which case at least three edges meet at a vertex.
Faces = 8Vertices = 6 Edges = 12.
The 12 edges of a regular octahedron consist of 6 parallel opposite pairs. In fact, the 12 edges form 3 squares.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. Octahedra can have 12 to 18 edges.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. An octohedron can have 12 to 18 edges.