Finding Area for 2-D Shapes!
What is area?
Area is the amount of space in a figure. In this case, it's for 2-D shapes.
What are 2-D Shapes?
2-D = 2-Dimensional. A 2-D shape is a closed, flat figure.
For Example: A quadrilateral, triangle, circle, parallelogram, and a lot more :)
Area of a Square...
To find the area of a square, just multiply with this formula: Length squared or Length times Width.
L² or L xW L EX: 5x5=25 units squared
Area of a Rectangle...
To find the area of a retangle, multiply its Length to its Width.
L xW Ex:10x5=50 units squared
Area of a Triangle...
To find the area of a triangle, multiply half the base times the height.
1/2bxh Ex:1/2(12) x (8)
6 x 8= 48 inches squared
Area of a Parallelogram...
To find the area of a parallelogram, multiply with its base tmes its height.
BxH Ex: 12x5=60 centemeters squared
Area of a Circle...
To find the area of a circle, multiply pi(3.14) with the circle's radius and the radius again.
r² Ex: (3.14)(5)(5)=78.5 inches squared
More...
For more information about area and anything else about math, visit
the following websites:
http://mathgoodies.com/students.html
http://www.mathsisfun.com/area.html
To find surface area for 3-Dimensional shapes, visit Austin's page:
finding the surface area for 3D shapes
Comments (9)
Anonymous said
at 9:56 am on Nov 5, 2007
put examples like numbers on the picture to show how it works. its good tho :]
Anonymous said
at 10:10 am on Nov 5, 2007
you have good pictures but try to add links to your page
Anonymous said
at 2:30 pm on Nov 5, 2007
I agree with Adela, you should show examples of how you can find the area of something. Also, instead of using an asterisk for multiplication, you can use an "x". That's what I did anyway.
Anonymous said
at 2:54 pm on Nov 5, 2007
need some examples.
Anonymous said
at 4:53 pm on Nov 5, 2007
you need examples and to try to fix up your pictures
very good :)how do you want me to help you fiona??
Anonymous said
at 6:48 pm on Nov 5, 2007
nice put a few examples what kind of pics should i put on my page?
Anonymous said
at 7:26 pm on Nov 5, 2007
Good but give an example on how to multiply them and just put circles and other shapes
Anonymous said
at 7:30 pm on Nov 5, 2007
Thanks for the comment! I LOVE yours! It's so COLORFUL!!! Yay! And there's lots of pictures! I like that! Just in my opinion though, the color of your title doesn't quite match everything else...it's too light...I think...
Anonymous said
at 5:23 pm on Nov 21, 2007
Good, but this gets hard to read the farther from the top one gets. A little more time fixing your pictures would help.
3 of 4 points
11 of 12 total project points
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