A Quadrilateral with two sides Parallel. The trapezoid depicted above satisfies

and has Area

The trapezoid is equivalent to the British definition of Trapezium.

**References**

Beyer, W. H. (Ed.) *CRC Standard Mathematical Tables, 28th ed.* Boca Raton, FL: CRC Press, p. 123, 1987.

© 1996-9

1999-05-26