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- ...[mathematics]], the precise (exact) definition only allows points in the 3 dimensional space which are uniformly and symmetrically located at a fixed length calle A sphere is the 3 dimensional analogue of a circle. ...1 KB (190 words) - 09:33, 24 December 2016
- '''Area''' is the amount of [[Space (physics)|space]] a [[two dimensional]] (flat) surface takes up. It is useful because it is how much of a [[mater ...a flat object is related to the [[surface area]] and [[volume]] of a three-dimensional object. ...1,019 bytes (162 words) - 11:02, 5 February 2017
- ...x]]. These are the four-dimensional analogs of the [[Platonic solid]]s (in three dimensions) and the [[regular polygon]]s (in two dimensions). ...olids. There is one additional figure (the [[24-cell]]) which has no three-dimensional equivalent. ...8 KB (1,007 words) - 05:56, 15 September 2016
- A '''cylinder''' is one of the most basic curved [[geometric]] shapes, with the [[surface]] formed by the points at a fixed distance from a given [[Category:Three-dimensional shapes]] ...6 KB (945 words) - 12:33, 31 August 2015
- A '''circle''' is a [[round]], regular, [[2D|two-dimensional]] shape, shaped like a 2D sphere [[Category:Shapes]] ...3 KB (549 words) - 20:57, 12 August 2016