Perimeter: Difference between revisions
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== Formulas == | == Formulas == | ||
* Square: <math>4s</math>, where <math>s</math> is the side length. | * [[Square (geometry) | Square]]: <math>4s</math>, where <math>s</math> is the side length. | ||
* Rectangle: <math>2(l+w)</math>, where <math>l</math> is the length and <math>w</math> is the width. | * [[Rectangle]]: <math>2(l+w)</math>, where <math>l</math> is the length and <math>w</math> is the width. | ||
* Circle - <math>2\pi r</math>, where <math>r</math> is the [[radius]]. | * Circle - <math>2\pi r</math>, where <math>r</math> is the [[radius]]. | ||
Revision as of 01:52, 31 October 2006
Definition
The perimeter of a geometric figure is the distance around the edge of the figure. Perimeter is often denoted by P. The perimeter of a circle is called its circumference.
Formulas
- Square:
, where 
is the side length.
, where 
is the side length.- Rectangle:
, where 
is the length and 
is the width.
, where 
is the length and 
is the width.- Circle -
, where 
is the radius.
, where 
is the - Regular geometric figure with
sides: 
, where is the side length.
sides: 
, where 
