Areas
Formulas and instructions for finding the areas of circles, kites, parallelograms, rectangles, rhombi, squares, trapezoids and oddly shaped geometric objects
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area of a circle  area of a kite  area of a parallelogram 
area of a rectangle  area of a rhombus  area of a square 
area of a trapezoid  area of an oddly shaped geometric region 
The area of a circle:  
Area = 

The area of a kite: 

To find the area of a kite, multiply the lengths of the two diagonals and divide by 2 (same as multiplying by 1/2): 

To find the area of a parallelogram, just multiply the base length (b) times the height (h): Area = b x h 

Go here to see where this formula comes from! 