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octahedron 音标拼音: [,ɑktəh'idrən]

XDict

n. 八面体

PyDict

八面体

WordNet (r) 3.0 (2006) (WordNet)

octahedron
n 1: any polyhedron having eight plane faces

The Collaborative International Dictionary of English v.0.48 (gcide)

octahedron \oc`ta*he"dron\ ([o^]k`t[.a]*h[=e]"dr[o^]n), n. [Gr.
'okta`edron, fr. 'okta`edros eight-sided; 'okta- (for 'oktw`
eight) "e`dra seat, base, from "e`zesqai to sit.] (Geom.)
A solid bounded by eight faces. The regular octahedron is
contained by eight equal equilateral triangles.
[1913 Webster]

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英文字典中文字典相关资料:

Octahedron - Wikipedia
In geometry, an octahedron (pl : octahedra or octahedrons) is any 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
Octahedron - Shape, Meaning, Formula, Examples - Cuemath
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
Spinning Octahedron - Math is Fun
For a regular octahedron (where all faces are equilateral triangles): The name octahedron comes from the Greek octa- meaning 8, because it is a polyhedron with 8 faces Like an octopus has 8 tentacles When we have more than one octahedron they are called octahedra
Octahedron – Definition, Properties, Formulas, Diagrams
What is an octahedron Learn how to find the volume and surface area of a regular octahedron with formulas, solved examples, and diagrams
Octahedron -- from Wolfram MathWorld
A (general) octahedron is a polyhedron having eight faces
Octahedron - Polytope Wiki
The octahedron (OBSA: oct) is one of the five Platonic solids It consists of 8 equilateral triangles, joined 4 to a square vertex It is the 3 dimensional orthoplex
Octahedron - Math. net
An octahedron is a space figure with 8 faces that are polygons In the figure below are 3 different types of octahedrons The prefix "octa" means eight An octahedron can be formed by two pyramids with bases in the shape of a quadrilateral, as shown in the figure below
Solid shapes and their nets - octahedron
Other regular solids with triangular faces? An octahedron has four triangles at each vertex (corner) It is possible to have a different number of triangles at the vertex of a regular solid These make a tetrahedron or an icosahedron
Octahedron Capital
Octahedron Capital is a global, growth-oriented, technology investment firm
Volume and Area of an Octahedron – Formula and Examples
An octahedron is a three-dimensional figure formed by joining two pyramids at their bases We can calculate the volume of an octahedron by adding the volume of the two pyramids that compose it

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