An octahedron has 8 sides.
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Sides and faces are the same thing, and an octahedron has eight.
An octahedron has eight faces - by definition.
32 sides
An octahedron is a 3D shape with 8 sides.
In geometry, an octahedron is a polyhedron with eight sides. A regular octahedron is the dual polyhedron of a cube; It is a rectified tetrahedron.