**1.** ** Octahedron** definition is - a solid bounded by eight plane faces

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**2.** Recent Examples on the Web They are defined by symmetry, and the Greeks knew that there were only five possibilities meeting the criteria: the tetrahedron, cube, ** Octahedron**, dodecahedron and icosahedron

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**3.** ** Octahedron** definition, a solid figure having eight faces

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**4.** An ** Octahedron** can be formed by two pyramids with bases in the shape of a quadrilateral, as shown in the figure below

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**5.** Properties of a regular *Octahedron*

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**6.** A regular ** Octahedron** is an

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**7.** Illustrated definition of ** Octahedron**: A polyhedron (a flat-sided solid object) with 8 Faces

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**8.** ** Octahedron** is a precision vertical action game about creating your own platforms.

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**10.** (“** Octahedron**”) maintains a single website - www.

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**12.** The ** Octahedron** halves the tetrahedron’s surface area & volume

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**13.** Rectification of the Tetrahedron and the *Octahedron*

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**14.** Remember, truncating the tetrahedron in its extreme creates the *Octahedron*

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**15.** In other words, the rectification of the tetrahedron creates the ** Octahedron**.

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**16.** The ** Octahedron** is one of the five Platonic solids

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**17.** The ** Octahedron** can be divided into two equal pyramids

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**18.** Therefore, the volume of the ** Octahedron** = 2 × the volume of the pyramid

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**19.** In the case of the right ** Octahedron**, the base area equal a².

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**23.** A (general) ** Octahedron** is a polyhedron having eight faces

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**24.** Examples include the augmented triangular prism (Johnson solid), boat, gyrobifastigium (Johnson solid), heptagonal pyramid, hexagonal prism, (regular) ** Octahedron**, square dipyramid, triangular cupola (Johnson solid), tridiminished icosahedron (Johnson solid), and truncated tetrahedron.

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**25.** If the edge length of a regular ** Octahedron** is a, the radius of a circumscribed sphere (one that touches the

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**26.** ‘A dodecahedron modified by the ** Octahedron** and cube from Nordmark, Sweden, is figured in Goldschmidt.’ ‘It was a set of platonic bodies: there was an

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**27.** ** Octahedron** is the stunning new album from The Mars Volta

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**28.** Blue Fluorite ** Octahedron** Ultra Rare - Extra Large

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**30.** A rare-earth metal ** Octahedron** appears to be by far the best choice to accommodate a transition metal atom from groups 7 to 12 (most prolific of groups 8 to 10) as an endohedral atom to form a centered heteroatomic cluster {TR 6}.As we have seen in the previous sections, these

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**31.** What does ** Octahedron** mean? A polyhedron with eight faces

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**32.** ** Octahedron** (plural octahedra or

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**33.** Synonyms for ** Octahedron** in Free Thesaurus

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**34.** 1 word related to ** Octahedron**: polyhedron

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**35.** What are synonyms for ** Octahedron**?

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**36.** In this ** Octahedron** we construct a regular icosahedron using the method explained before

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**37.** This is the icosahedron inside the ** Octahedron** inside the tetrahedron inside the cube inside the dodecahedron.

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**38.** The centers of the square faces determine an ** Octahedron** (right figure; Ball and Coxeter 1987, p

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**39.** Wenninger (1989) lists four of the possible stellations of the cub*Octahedron*: the cube-** Octahedron** compound , a truncated form of the stella octangula , a sort of compound of six intersecting square pyramids, and an attractive concave solid

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**40.** A cub*Octahedron* is a polyhedron with 8 triangular faces and 6 square faces

**41.** A cub*Octahedron* has 12 identical vertices, with 2 triangles and 2 squares meeting at each, and 24 identical edges, each separating a triangle from a square.As such, it is a quasiregular polyhedron, i.e

**42.** These are the instructions to learn how to make a pretty origami ** Octahedron** which can be used as a gift box or hanging decoration! Get a FREE printable ori

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**43.** Apr 15, 2014 - Explore Jim Wrenholt's board "** Octahedron**", followed by 129 people on

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**44.** See more ideas about ** Octahedron**, platonic solid, japanese buddhism.

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**45.** ** Octahedron** is the fifth full-length studio album by American progressive rock band the Mars Volta, released on June 23, 2009.The album was released by Warner Bros

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**48.** The ** Octahedron** is one of the Platonic solids, although octahedral molecules typically have an atom in their centre and no bonds between the ligand atoms

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**49.** A perfect ** Octahedron** belongs to the point group O h

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**50.** The Demonstration shows that the surface of a regular ** Octahedron** can be rearranged to form the surfaces of two regular tetrahedra

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**51.** ** Octahedron** is a challenging psychedelic action platformer that has you defying gravity to a pumping beat

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**52.** A facile in situ metal–organic framework‐derived engineering method is proposed for carbon‐nanotube‐assembled ** Octahedron** carbon‐encapsulated Cu3P/Cu heterostructure toward superior lithium storage (c

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**53.** Open the lower section to create the *Octahedron*

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**54.** Now you should have a three-dimensional ** Octahedron**.

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**55.** RainbowBox 8-axis ** Octahedron** Diamond Puzzle Speed Cube Eight Axis

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**56.** A cube and an ** Octahedron**, for example, are very closely related

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**57.** If we choose the centers of the six square faces of a cube, these are the vertices of an *Octahedron*

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**58.** We say that the ** Octahedron** is the dual of the cube

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**59.** Conversely, the centers of the eight triangular faces of an ** Octahedron** are the vertices of a cube, so the cube is the dual of

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**60.** ** Octahedron** Achievements Full list of all 19

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**61.** ** Octahedron** Make a paper

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**62.** An ** Octahedron** is an eight-sided regular geometric solid

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**OCTAHEDRON** [ˌäktəˈhēdrən]

NOUN

**octahedron** (noun) · **octahedra** (plural noun) · **octahedrons** (plural noun)

- a three-dimensional shape having eight plane faces, especially a regular solid figure with eight equal triangular faces.
- a body, especially a crystal, in the form of a regular octahedron.

Freebase(0.00 / 0 votes)Rate this definition: In geometry, an octahedron is a **polyhedron with eight faces**. A regular octahedron is a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex. An octahedron is the three-dimensional case of the more general concept of a cross polytope.

The octahedron has eight faces, hence the prefix octa-. An example of an octahedral compound is **molybdenum hexacarbonyl (Mo(CO) 6).** The term octahedral is used somewhat loosely by chemists, focusing on the geometry of the bonds to the central __atom__ and not considering differences among the ligands themselves.

In geometry, an **octahedron** (plural: octahedra) is a __polyhedron__ with eight **faces**, twelve edges, and six vertices.

Noun. octahedron ( plural octahedra or octahedrons ) ( geometry) a polyhedron with eight faces; the regular octahedron has regular triangles as faces and is one of the Platonic solids.