How many vertices does a octahedron have?

Answer 1

i have no clue

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An octahedron is the name for a non-specific shape.

It could, as described above, be a di-rectangular pyramid with 6 vertices.

Or it could be a heptagonal pyramid, in which case it has 8 vertices.

Or it could be a hexagonal prism, in which case it has 12 vertices.

There are other octahedraons.

Answer 2

An octahedron is the name for a 3D shape with 8 faces. There are octahedra with 6 to 12 vertices.
It could, for example, be a rectangular bipyramid with 6 vertices;
or a heptagonal pyramid, in which case it has 8 vertices;
or a hexagonal prism, in which case it has 12 vertices.