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Example: Comparing Perimeters of Plane Figures

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Explanation:

 

 

Square (geometry)

Square


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.

 

 

 

 

 

 

 

Perimeter

 

The Perimeter of a square whose sides have length t is

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

 

 

http://en.wikipedia.org/wiki/Square_(geometry)

 

 

 

Rectangle

 

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)

Rectangle

 

The formula for the perimeter of a rectangle.

 

http://en.wikipedia.org/wiki/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.