| rectangle | <geometry> A four-sided figure having only right angles; a right-angled parallelogram. As the area of a rectangle is expressed by the product of its two dimensions, the term rectangle is sometimes used for product; as, the rectangle of a and b, that is, ab. Origin: F, fr. L. Rectus right + angulus angle. See Right, and Angle. Source: Websters Dictionary (01 Mar 1998) |
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