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Rectangle
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===Miscellaneous=== A rectangle is a [[rectilinear polygon]]: its sides meet at right angles. A rectangle in the plane can be defined by five independent [[Degrees of freedom (mechanics)|degrees of freedom]] consisting, for example, of three for position (comprising two of [[Translation (geometry)|translation]] and one of [[rotation]]), one for shape ([[Aspect ratio#Rectangles|aspect ratio]]), and one for overall size (area). Two rectangles, neither of which will fit inside the other, are said to be [[Comparability|incomparable]].
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