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polyhedron    音标拼音: [p,ɑlɪh'idrən] [p,ɑlih'idrən]
n. 多面体

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  • Polyhedron - Wikipedia
    Polyhedra have several general characteristics that include the number of faces, topological classification by Euler characteristic, duality, vertex figures, surface area, volume, interior lines, Dehn invariant, and symmetry
  • Polyhedron - Definition, Types, Formulas, Examples, Diagrams
    What is a polyhedron Learn about its shapes explained with types, formula, solved examples, and diagrams
  • Polyhedron - Math is Fun
    A polyhedron is a solid shape with flat faces and straight edges Each face is a polygon (a flat shape with straight sides)
  • What is a Polyhedron? Definition, Types, Parts, Formula, Examples
    Polyhedron is a 3D shape with flat polygonal faces, straight edges, and sharp corners or vertices Learn the definition, types, formulas, examples, and more
  • Polyhedron - from Wolfram MathWorld
    In geometry, a polyhedron is simply a three-dimensional solid which consists of a collection of polygons, usually joined at their edges The word derives from the Greek poly (many) plus the Indo-European hedron (seat)
  • Polyhedron | Meaning, Shapes, Formula, and Examples
    A polyhedron is a 3D solid made up of flat polygonal faces, with edges meeting at vertices Each face is a polygon, and the edges connect the faces at their vertices Examples include cubes, prisms, and pyramids Shapes like cones and spheres are not polyhedrons because they lack polygonal faces
  • Polyhedron | 3D Shapes, Platonic Solids, Faces | Britannica
    Polyhedron, In Euclidean geometry, a three-dimensional object composed of a finite number of polygonal surfaces (faces) Technically, a polyhedron is the boundary between the interior and exterior of a solid
  • Polyhedron - New World Encyclopedia
    Cubes, prisms, and pyramids are examples of polyhedra A polyhedron surrounds a bounded volume in three-dimensional space; sometimes this interior volume is considered to be part of the polyhedron, sometimes only the surface is considered, and occasionally only the skeleton of edges
  • Regular Polyhedra | Brilliant Math Science Wiki
    There are nine regular polyhedra all together: four "star" polyhedra or Kepler-Poinsot polyhedra Regular polyhedra (particularly the Platonic solids) are commonly seen in nature For example, the icosahedral crystalline structure of iron pyrite and the tetrahedral structure of the methane molecule are shaped like Platonic solids
  • What is a Polyhedron? Definition, Facts, Resources Video - Twinkl
    In geometry, a polyhedron is a three-dimensional object with flat polygonal faces, sharp corners and straight edges Each side is a flat surface and is without any curved surfaces





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