### Topic Page: Rectangles

**rectangle**from

*Philip's Encyclopedia*

**rectangle**

*The Hutchinson Unabridged Encyclopedia with Atlas and Weather Guide*

Quadrilateral (four-sided plane figure) with opposite sides equal and parallel and with each interior angle a right angle (90°). Its area A is the product of the length l and height h; that is, A = l × h. A rectangle with all four sides equal is a square.

A rectangle is a special case of a parallelogram. The diagonals of a rectangle are equal and bisect each other.

essays

Rectangles: algebraic expressions

images

rectangle

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