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Example: Comparing Perimeters of Plane Figures

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Square (geometry)


A square is a regular quadrilateral.


In geometry, a square is a regular quadrilateral. This means that it has four equal sides and four equal angles (90 degree angles, or right angles). A square with vertices ABCD would be denoted  ABCD.










The Perimeter of a square whose sides have length t is

(Our solved example in mathguru.com uses this concept)









In Euclidean plane geometry, a rectangle is any quadrilateral with four right angles.  A rectangle with vertices ABCD would be denoted as  ABCD.





If a rectangle has length l and width w

It has perimeter P = 2l + 2w = 2(l + w), (Our solved example in mathguru.com uses this concept)



The formula for the perimeter of a rectangle.




The above explanation is copied from Wikipedia, the free encyclopedia and is remixed as allowed under the Creative Commons Attribution- ShareAlike 3.0 Unported License.