What is 2D?
[[File:Square - black simple.svg|thumb|A square has 2 dimensions: ''length'' and ''width''.]] '''2D''' or '''two-dimensional''' objects have two [[measurement]]s: [[width]] and [[length]], like a [[Square (geometry)|square]]. 2D objects do not have [[depth]], like [[3D]] objects. The simplest 2D shape is a [[triangle]]. A 2D object can have any number of sides, making shapes such as [[pentagon]]s and [[hexagon]]s. The sides can bend to make different [[angle]]s. 2D objects can even have sides that go through each other. Two dimensional space is a [[mathematics]] tool, and it has many kinds of uses in [[computer science]], [[geometry]], the making of [[software]], and also in paper. {{Math-stub}} [[Category:Computing]] [[Category:Geometry]]