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Octahedron
01
八面体
a geometric figure with eight triangular faces, twelve edges, and six vertices
例子
The dual of an octahedron is a cube, and vice versa, forming a pair of dual polyhedra.
The eight faces of an octahedron divide space into regions that are congruent to tetrahedra.
The vertices of an octahedron can be inscribed in a cube, forming a relationship between these two geometric shapes.
The faces of an octahedron are all equilateral triangles, and each vertex is the meeting point of four triangles.
