This page gives you a quick reference to all the important Area formulas.
What is Area?
The area is the size of a twodimensional surface. It is defined as the amount of twodimensional space occupied by an object. Area formulas have many practical applications in building, farming, architecture, science. The area of a shape can be determined by placing the shape over a grid and counting the number of squares that covers the entire space. For example, the area of a square can be calculated using a2 where a is the length of its side.List of Area Formulas
Figures  Area Formula  Variables 
Area of
Rectangle
 Area = l  l = length
w = width

Area of Square  Area =  a = sides of a square 
Area of a Triangle  Area =  b = baseh = height 
Area of a Circle  Area =  r= radius of a circle 
Area of a Trapezoid  Area =  a =base 1 b = base 2 h = vertical height 
Area of Ellipse  Area =  a = radius of major axis b = area of the minor axis 
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