Difference between revisions of "Trapezoid"

Revision as of 18:48, May 14, 2007

A trapezoid (British: trapezium) is a four-sided polygon with two parallel sides.

The following properties arise from the definition:

Two of the pairs of adjacent angles sum to 180^o
The area of the trapezium is the average of the parallel sides multipleied by the distance between them.

@@ Line 1: / Line 1: @@
-A '''trapezoid''' (british: trapezium) is a four-sided [[polygon]] with two [[parallel]] sides.
+A '''trapezoid''' (British: [[trapezium]]) is a four-sided [[polygon]] with two [[parallel]] sides.
 [[Image:trapezoid.gif]]
-Note: in british usage, the word 'trapezoid' refers to what in american usage is called [[Trapezium|trapezium]].
+The following properties arise from the definition:
+* Two of the pairs of adjacent angles sum to 180<sup>o</sup>
+* The area of the trapezium is the average of the parallel sides multipleied by the distance between them.
 [[Category:Geometry]]