Difference between revisions of "Rectangle"
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* Area = product of any two adjacent sides | * Area = product of any two adjacent sides | ||
| − | Please note that the adjacent sides | + | Please note that the adjacent sides may or may not be of equal length. The special case where all four sides of a rectangle are equal is called a [[square]], which is also a [[rhombus]] and a [[kite]]. |
Revision as of 10:19, May 14, 2007
A rectangle is a polygon of four sides where every angle is a right angle (90°)[1].
As a result of this definition:
- Each pair of opposite sides is of equal length.
- Opposite sides are parallel
- Diagonals are equal
- Adjacent sides are perpendicular
- Area = product of any two adjacent sides
Please note that the adjacent sides may or may not be of equal length. The special case where all four sides of a rectangle are equal is called a square, which is also a rhombus and a kite.
Notes
- ↑ There are many definitions of rectangle, but it seems sensible to use one which is based on angle properties rather than length or parallelism properties. Definition adapted from http://www.mathsisfun.com/definitions/rectangle.html