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Rectangle

Page history last edited by PBworks 16 years, 4 months ago

 

                       Rectangles

 

 

 

A rectangle is a parallelogram that has four right angles.

 

 

A parallelogram has two parallel lines like rectangles, square, and rhombus.

 

 

All squares are rectangles, but not all rectangles are squares.

 

                   Rectangle                                                   Square                                         Parallelogram                                          Rhombus

                          V                                                              V                                                        V                                                          V       

                     

 

 L= Length W= Width P= Perimeter

 

 

To find the rectangle's Perimeter you use the formula L x 2 + W x 2 = P

 

 

Example:(18ft x 2) + (36ft x 2) = 108ft; L=18ft W=36ft P=108ft

 

 

 To find the rectangle's area you use the formula L x W= A

 

                                                                                                      2

Example:18ft x 36ft=648ft;L=18ft W=36ft A=648ft

 

 

Remember! When you get the area (NOT perimeter) always put

                   2                               squared->2        2              2

  squared (    ) at the end. Examples: 3  ,9  ,100 

 

If the rectangle has 84in. in length and 32in. in width, what is the perimeter and area of the

 

rectangle? 

                                                                                                                                  2 

If you got  232in. for perimeter and 2,688in for area, you are correct.

 

(84in. x 2) + (32in. x 2) = 232in. is how you get the perimeter and  

                                                      2

84in. x 32in. = 2,688in. is how you get the area.

 

 

Informational Websites:

 

http://standards.nctm.org/document/eexamples/chap5/5.3/index.htm

 

http://www.webmath.com/geo_rectangle.html

 

http://www.webmath.com/k8rectangle.html

 

http://www.mste.uiuc.edu/users/carvell/rectperim/RectPerim2.html

 

http://www.321know.com/geo78_x3.htm

 

http://www.math.okstate.edu/~geoset/Projects/Ideas/SquareRect.htm

 

More coming soon............

 

 

 

Comments (16)

Anonymous said

at 2:40 pm on Oct 24, 2007

^o^

Anonymous said

at 6:02 pm on Oct 25, 2007

Wow, you can email and chat with yourself if you click on your own name.

Anonymous said

at 6:39 pm on Oct 28, 2007

HA HA
thanks 4 the tip!

Anonymous said

at 5:37 pm on Oct 31, 2007

wats a paranormallallellogrammm?....

Anonymous said

at 3:41 pm on Nov 1, 2007

a parallelogram has two parallel lines that never meet.

Anonymous said

at 4:14 pm on Nov 1, 2007

hmmmmmmm...interesting...

Anonymous said

at 4:15 pm on Nov 1, 2007

wats with the "squared" thing next to ur example thing

Anonymous said

at 5:16 pm on Nov 1, 2007

pointing at the exponent

Anonymous said

at 6:04 pm on Nov 1, 2007

thankss i didn't catch that.
nice pagee :)

Anonymous said

at 1:21 pm on Nov 5, 2007

You might want to double space the beggining but good work:)

Anonymous said

at 1:24 pm on Nov 5, 2007

u are going to put more info right? it looks great!

Anonymous said

at 1:25 pm on Nov 5, 2007

double space it hard to read

Anonymous said

at 1:33 pm on Nov 5, 2007

the title is allllll the way down the middle of the page...u should center and pull up the title

Anonymous said

at 2:35 pm on Nov 5, 2007

good work it looks great

Anonymous said

at 7:00 pm on Nov 6, 2007

i wonder when "more is coming soon" is going to be...hmmmm any way nice page and co000ol pics

Anonymous said

at 10:36 pm on Nov 21, 2007

This seems unfinished. I would like you to work on making it clearer and easier to read. Think about grouping and organizing the things you want to say.

2.5 of 4
8 of 12 total project points

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