Euclid:Proposition/I/47

Proposition

In the words of Euclid:

In right-angled triangles the square on the side subtending the right angle is equal to the squares on the sides containing the right angle.

(The Elements: Book $\text{I}$: )


Sources

  • 1926: Sir Thomas L. Heath: Euclid: The Thirteen Books of The Elements: Volume 1 (2nd ed.) ... (previous) ... (next): Book $\text{I}$. Propositions
  • 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): Euclid (c. 300-260 bc)
  • 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Euclid (c.300-260 bc)
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