Why is the Area of a Circle Pi*r^2?
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http://showme.physics.drexel.edu/thury/circle.html  


Eva Thury  
An explanation of the formula for the area of a circle, based on "slicing" and rearranging the circle.  


Levels:  Middle School (68), High School (912) 
Languages:  English 
Resource Types:  Graphics 
Math Topics:  Euclidean Plane Geometry 
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