Pythagoras


   
 
Introduction
In the given triangle ABC, ÐA = 90o. Squares BCDE, ABFG and ACKL are drawn on the sides of the triangle.
 
 
area of square BCDE = BC2
 
area of square ABFG = AB2
 
area of square ACKL = AC2
 
Pythagoras' theorem states that,
 
area of square BCDE = area of square ABFG + area of square ACKL
 
BC2 = AB2 + AC2
 
 
     
   
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