Definition of Pythagorean theorem in English:

Pythagorean theorem

Pronunciation /pəˌTHaɡəˈrēən/ /pī-/ /paɪˌθæɡəriən ˈθiərəm/

Translate Pythagorean theorem into Spanish


  • A theorem attributed to Pythagoras that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides.

    ‘Suffice it to say that the headaches of algebra, Pythagoras' theorem, and geometry didn't tickle his fancy.’
    • ‘By chapter two he is proving Pythagoras' theorem from first principles and introducing non-Euclidean geometry.’
    • ‘The Sulba Sutras demonstrate that India had Pythagoras' theorem before the great Greek was born.’
    • ‘Among these is the enunciation (but not proof) of Pythagoras' theorem.’