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- πώς χρησιμοποιείται η λέξη
- συχνότητα χρήσης
- χρησιμοποιείται πιο συχνά στον προφορικό ή γραπτό λόγο
- επιλογές μετάφρασης λέξεων
- παραδείγματα χρήσης (πολλές φράσεις με μετάφραση)
- ετυμολογία
Τι (ποιος) είναι Polyhedron - ορισμός
SOLID IN THREE DIMENSIONS WITH FLAT FACES
Polyhedra; CHILIAHEDRON; Polyhedrons; Chiliahedron; 3-polytope; Polyhedron and Polyhedra; Nullitope; 3-dimensional polytope; Polyhedral surface; Hedron; Hedrons; Null polytope; N-hedron; Volume of a polyhedron; Coptic polyhedron; Acoptic polyhedron; Nonacoptic polyhedron; 0-gon; Null polygon; Topological polyhedra; Orthogonal polyhedron; Orthogonal polyhedra; Orthogonal polyhedrons; Facet of a polyhedron
![Full [[icosahedral symmetry]] divides the sphere into 120 triangular domains.](https://commons.wikimedia.org/wiki/Special:FilePath/Icosahedral reflection domains.png?width=200 "Full [[icosahedral symmetry]] divides the sphere into 120 triangular domains.")
![A skeletal polyhedron (specifically, a [[rhombicuboctahedron]]) drawn by [[Leonardo da Vinci]] to illustrate a book by [[Luca Pacioli]]](https://commons.wikimedia.org/wiki/Special:FilePath/Leonardo polyhedra.png?width=200 "A skeletal polyhedron (specifically, a [[rhombicuboctahedron]]) drawn by [[Leonardo da Vinci]] to illustrate a book by [[Luca Pacioli]]")
![The [[tetrahemihexahedron]], a non-orientable self-intersecting polyhedron with four triangular faces (red) and three square faces (yellow). As with a [[Möbius strip]] or [[Klein bottle]], a continuous path along the surface of this polyhedron can reach the point on the opposite side of the surface from its starting point, making it impossible to separate the surface into an inside and an outside.](https://commons.wikimedia.org/wiki/Special:FilePath/Tetrahemihexahedron rotation.gif?width=200 "The [[tetrahemihexahedron]], a non-orientable self-intersecting polyhedron with four triangular faces (red) and three square faces (yellow). As with a [[Möbius strip]] or [[Klein bottle]], a continuous path along the surface of this polyhedron can reach the point on the opposite side of the surface from its starting point, making it impossible to separate the surface into an inside and an outside.")
![Universum museum]] in Mexico City](https://commons.wikimedia.org/wiki/Special:FilePath/UniversumUNAM19.JPG?width=200 "Universum museum]] in Mexico City")
polyhedron
[?p?l?'hi:dr?n, -'h?d-]
¦ noun (plural polyhedra -dr? or polyhedrons) Geometry a solid figure with many plane faces, typically more than six.
Derivatives
polyhedral adjective
polyhedric adjective
Origin
C16: from Gk poluedron, neut. of poluedros 'many-sided'.
Polyhedron
·noun A polyscope, or multiplying glass.
II. Polyhedron ·noun A body or solid contained by many sides or planes.
Polyhedron
In geometry, a polyhedron (plural polyhedra or polyhedrons) is a three-dimensional shape with flat polygonal faces, straight edges and sharp corners or vertices. The word polyhedron comes from the Classical Greek πολύεδρον, as poly- (stem of ["many") + -hedron (form of ἕδρα], "base" or "seat").
Βικιπαίδεια
Polyhedron
In geometry, a polyhedron (plural polyhedra or polyhedrons; from Greek πολύ (poly-) 'many', and εδρον (-hedron) 'base, seat') is a three-dimensional shape with flat polygonal faces, straight edges and sharp corners or vertices.
A convex polyhedron is the convex hull of finitely many points, not all on the same plane. Cubes and pyramids are examples of convex polyhedra.
A polyhedron is a 3-dimensional example of a polytope, a more general concept in any number of dimensions.
Παραδείγματα από το σώμα κειμένου για Polyhedron
1. A few unusual picture adjustments can be found if you spin that polyhedron enough times.
2. The menu system is organized around a strange polyhedron in the upper–left corner that we found more confusing to use than a standard flat menu arrangement.