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Wednesday, December 1, 2010

Area and Perimeter

Finding the perimeter is very simple. What you are trying to do when finding the perimeter is find the length of the sides. If you had a square with sides four units long you would add all the sides together and get:

4+4+4+4= 16

So the perimeter would be 16 units.

If you had a triangle with a base of 4 units and two sides with lengths of 2 units each you would add up the base and the sides.

4+2+2=8

The perimeter would be 8

Finding the area can be a little more tricky.

Lets start of with the Units of measurement for area. All units are squares. The most common english units are square inch, square foot, square yard, acre, and square mile. Then with the metric system there is the square centimeter, square meter, and square millimeter.

Each shape has a its own formula to find its area.

Area of a rectangle= Length x Width

Area of a parallelogram = Base x Height

Area of a triangle= 1/2 x Base x Height



Isn't Math Fun!!!! :)

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