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Example: Comparing Perimeters of Plane Figures

 Post to:   Explanation:

Square (geometry)

 Square

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) The formula for the perimeter of a rectangle.

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