Octahedron

An octahedron is a three-dimensional shape with eight flat surfaces called faces, which are all equilateral triangles. It has six vertices (corners) and twelve edges connecting these vertices. Imagine two pyramids base-to-base; this creates an octahedron. It belongs to the family of polyhedra known as Platonic solids, meaning its faces are identical regular polygons, and the same number meet at each vertex. Octahedra are commonly found in crystals, molecular structures, and dice. Their symmetrical shape makes them a fascinating example of geometric harmony in three dimensions.