Pythagorean Theorem Definition
pĭ-thăgə-rēən
noun
The theorem that in a right triangle the hypotenuse squared is equal to the sum of the squares of the other sides (i.e., c2 = a2 + b2)
Webster's New World
pronoun
(geometry) A mathematical theorem which states that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of those of the two other sides.
The Pythagorean theorem only applies to right triangles.
Wiktionary
(functional analysis) A generalization of the Pythagorean theorem for Euclidean triangles to Hilbert spaces.
Wiktionary
Origin of Pythagorean Theorem
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Named after Pythagoras, from Ancient Greek Πυθαγόρας (Pythagoras), Greek mathematician and philosopher who by tradition is credited with theorem's discovery and proof.
From Wiktionary
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