Published December 1, 1908
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The Thirteen Books of the Elements. Volume 1. Books 1-2. Translated from the text of Heiberg. By Thomas L. Heath
Description
Pythagoras Theorem:
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.
Euclid, Elements, Volume 1, Book 1-2, Book 1, Proposition 47. p. 349.
(also PDF: page 360)
See also: archive.org
Notes
\href{https://archive.org/details/EuclidsElementsBooksIIIVolume1Heath/}{archive.org, San Francisco, CA 94118, USA}}
\href{https://doi.org/10.5281/zenodo.5983970}{Zenodo}}