Theorem of Pythagoras

Author:
Lamberto Lamberti
Topic:
Pythagoras or Pythagorean Theorem
In a right-angled triangle, ABC the square on the hypotenuse is equal to the sum of the squares on the two catheti: http://www.cs.utexas.edu/users/EWD/transcriptions/EWD09xx/EWD975.html .
GeoGebra Applet

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