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Three-Dimensional Pythagorean Theorem

Author:Auston B Cron
Topic:Geometry, Pythagoras or Pythagorean Theorem
The Pythagorean Theorem works to find the diagonal of a parallopiped. Can you see how the theorem extends to work in 3D?
Source: Alejandro Gallardo in Spanish Visit this site for more: http://dmentrard.free.fr/GEOGEBRA/Maths/Pythawat2MD.html

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