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Rectangle, Square

A rectangle is a four-sided figure whose sides are straight lines and whose angles are right angles.

A square is a rectangle whose sides are all equal.

Let l = length,  w = width, and  d = diagonal.
graphics/IE_rectangle__5.png

Example: The perimeter of a rectangle of width $2$ and length $5$ is MATHand its area is MATH


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Copyright © 2006 Darel Hardy, Fred Richman, Carol Walker, Robert Wisner. All rights reserved. Except upon the express prior permission in writing, from the authors, no part of this work may be reproduced, transcribed, stored electronically, or transmitted in any form by any method.

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