# By: Alvin Nguyen. Defining Area Area is the quantity that expresses the extent of a two-dimensional surface. It is commonly measured in square units.

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By: Alvin Nguyen

Defining Area Area is the quantity that expresses the extent of a two-dimensional surface. It is commonly measured in square units.

Area of a Square The area of the square is simply the product of one of the sides multiplied by itself.

Area of a Rectangle The area of the rectangle is the product of the length and width of the shape.

Area of a Triangle The area of a triangle is the product of the base multiplied by the height divided by two.

Additional Learning http://www.mathsisfun.com/area.html This link shows the formulas for some basic shapes. http://www.csgnetwork.com/areacalc.html This link will automatically calculate the area of some basic shapes, once you enter the dimensions.

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