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  1. Octahedron - Wikipedia

    • In geometry, an octahedron (pl.: octahedra or octahedrons) is a polyhedron with eight faces. One special case is the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex. Regular octahedra occur in nature as crystal structures. Many types of irregular octahedra also exist, including both convex and non-c… 展开

    Regular octahedron

    A regular octahedron is an octahedron that is a regular polyhedron. All the faces of a regular octahedron are equilateral triangles of the same size, and exactly four triangles meet at each vertex. A regular octahedron is convex, meani… 展开

    Other types of octahedra

    An octahedron can be any polyhedron with eight faces. In a previous example, the regular octahedron has 6 vertices and 12 edges, the minimum for an octahedron; irregular octahedra may have as many as 12 vertices and … 展开

     
  1. 8 faces
    • 根据 4 个来源
    An octahedron is a polyhedron with 8 faces, 12 edges, and 6 vertices and at each vertex 4 edges meet. It is one of the five platonic solids with faces that are shaped like an equilateral triangle.
    An octahedron has 8 faces, made up of 6 vertices and 12 edges. The faces are all equilateral triangles. There are 6 vertices on an octahedron. 4 of them meet at each vertex.
    The Octahedron has 12 sides, 8 faces and 6 vertices. Count them! Each of the octahedron's 8 faces is an equilateral triangle, just like the tetrahedron, but the tetrahedron only has 4 faces.
    Octahedron is one of only five Platonic solids. This is a regular polyhedron with 6 vertices, 12 edges, and 8 faces.
  2. Octahedron - Shape, Meaning, Formula, Examples

    An octahedron is a polyhedron with 8 faces, 12 edges, and 6 vertices and at each vertex 4 edges meet. It is one of the five platonic solids with faces that are shaped like an equilateral triangle. Learn more about Octahedron with this article.

  3. Regular Octahedron -- from Wolfram MathWorld

  4. Octahedron -- from Wolfram MathWorld

    2024年11月18日 · The regular octahedron, often simply called "the" octahedron, is the Platonic solid with six polyhedron vertices, 12 polyhedron edges, and eight equivalent equilateral triangular faces, denoted . It is also uniform polyhedron …

  5. Faces, Edges and Vertices of an Octahedron - Neurochispas

  6. Octahedron - Math.net

  7. Octahedron – Definition, Properties, Formulas,

    2023年11月27日 · An octahedron is a polyhedron. It has eight faces, twelve edges, and six vertices. If we join two square pyramids at their bases, we can create a regular octahedron. It belongs to the family of five platonic solids. …

  8. Octahedron: an Interactive Model - Alexander Bogomolny

  9. Platonic Solids - Math is Fun

  10. The Octahedron

    Learn about the octahedron, a 3D shape with 8 equilateral triangular faces, 6 vertices and 12 edges. Find out how to calculate its volume, area, angles, centroid and other properties using geometry formulas and diagrams.