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 This link shows the formulas for some basic shapes. This link will automatically calculate the area of some basic shapes, once you enter the dimensions.