# Pythagoras's Theorem

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## Pythagoras's Theorem

(mathematics)The theorem of geometry, named after
Pythagoras, of Samos, Ionia, stating that, for a
right-angled triangle, the square of the length of the
hypotenuse is equal to the sum of the squares of the lengths
of the other two sides. I.e. if the longest side has
length A and the other sides have lengths B and C (in any
units),

A^2 = B^2 + C^2

A^2 = B^2 + C^2

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