An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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Pythagorean theorem
  فربین ِ پوتاگوراس، ~ فیساغورس  
farbin-e Pythagoras, ~ Fisâqures
Fr.: théorème de Pythagore  

The proposition that the → square of the → hypotenuse of a
→ right triangle is equal to the → sum of the squares of the other two sides: a2 + b2 = c2.

See also: After Pythagoras (c570 BC-c495BC), Greek philosopher and mathematician; → theorem.