Difference between revisions of "Square (geometry)"
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− | + | A '''square''' is [[quadrilateral]] in which all [[edge|sides]] have equal length and all [[angle | angles]] are [[right angle]]s. | |
− | A square is | ||
− | == Area == | + | Equivalently, the squares are the [[regular polygon|regular]] quadrilaterals. |
− | The [[area]] of a square can be found by squaring the square's side length | + | |
+ | |||
+ | == Introductory == | ||
+ | === Area === | ||
+ | The [[area]] of a square can be found by squaring the square's side length: the area <math>A</math> of a square with side length <math>s</math> is <math> A = s^2 </math>. | ||
+ | |||
+ | === Perimeter === | ||
+ | The [[perimeter]] <math>P</math> of a square can be found by multiplying the square's side length by four - <math> P = 4s </math>. | ||
+ | |||
+ | === Diagonal === | ||
+ | The length of either [[diagonal]] of a square can be obtained by the [[Pythagorean Theorem | Pythagorean theorem]]. <math>D=\sqrt{s^2+s^2}=s\sqrt{2}</math> | ||
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== See Also == | == See Also == | ||
− | |||
* [[Unit Square]] | * [[Unit Square]] | ||
− | * [[Cube]] | + | * [[Cube (geometry) | Cube]] |
+ | |||
+ | [[Category:Geometry]] | ||
+ | |||
+ | [[Category:Definition]] |
Revision as of 16:55, 7 October 2007
A square is quadrilateral in which all sides have equal length and all angles are right angles.
Equivalently, the squares are the regular quadrilaterals.
Introductory
Area
The area of a square can be found by squaring the square's side length: the area of a square with side length is .
Perimeter
The perimeter of a square can be found by multiplying the square's side length by four - .
Diagonal
The length of either diagonal of a square can be obtained by the Pythagorean theorem.