Question from Andre:

How do you draw a trapezoid with one right angle?

Hi Andre.

It sounds like you've run into a peculiarity in the English usage of the word "trapezoid". As Chris wrote in this earlier reply, the North American and British definitions are switched:  

  North American definition British definition
trapezoid a quadrilateral plane figure having two parallel and two nonparallel sides any rectilinear quadrilateral plane figure with no parallel sides
trapezium any rectilinear quadrilateral plane figure with no parallel sides a quadrilateral plane figure having two parallel and two nonparallel sides

Note that none of these definitions say anything about the lengths of the sides, parallel or not, so you should be able to create a trapezoid (trapezium) with a right angle under any definition.

Stephen La Rocque. >