Cuboid
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In geometry, a cuboid (also called a rectangular prism) is a solid figure bounded by six rectangular faces: a rectangular box. All angles are right angles, and opposite faces of a cuboid are equal. It is also a right rectangular prism. The term "rectangular or oblong prism" is ambiguous. Also the term rectangular parallelepiped is used. The square cuboid, square box ,or right square prism (also ambiguously called square prism) is a special case of the cuboid in which at least two faces are squares. The cube is a special case of the square prism in which all faces are squares. If the dimensions of a cuboid are a, b and c, then its volume is abc and its surface area is 2ab + 2bc + 2ac. The length of the space diagonal is Failed to parse (Missing texvc executable; please see math/README to configure.): d = \sqrt{a^2+b^2+c^2} .
Euler's formula (the number of faces (F), vertices (V), and edges (E) of a polyhedron are related by the formula F + V = E + 2 gives here 6 + 8 = 12 + 2. Cuboid shapes are often used for boxes, cupboards, rooms, buildings, etc. Cuboids are among those solids that can tesselate 3-dimensional space. The shape is fairly versatile in being able to contain multiple smaller cuboids, e.g. sugar cubes in a box, small boxes in a large box, a cupboard in a room, and rooms in a building. See alsoExternal links
cs:Kvádr de:Quader es:Ortoedro eo:Kvadro fr:Cuboïde he:תיבה (גאומטריה) ko:직육면체 lt:Stačiakampis gretasienis nl:Balk (geometrie) id:Balok ja:直方体 pl:Prostopadłościan qu:Suqtawask'a sl:Kvader sr:Квадар sv:Rätblock th:ทรงสี่เหลี่ยมมุมฉาก | ||||||||||||||||||


