The Pythagorean Theorem works to find the diagonal of a parallopiped. [br][br]Can you see how the theorem extends to work in 3D?

Source: [url=https://www.geogebra.org/alegallardo28]Alejandro Gallardo in Spanish[/url] [br][br]Visit this site for more: [url]http://dmentrard.free.fr/GEOGEBRA/Maths/Pythawat2MD.html[/url]