People make many rectangular things, including most tables, boxes, books, and papers. The word comes from Latin words meaning "right" and angle".
A rectangle with all four sides equal in length is called a square.
Formulas[change | change source]
If a rectangle has length and width w
- it has area ,
- it has perimeter ,
- each diagonal has length ,
- it has an aspect ratio = : w,
- and when , the rectangle is a square.
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