from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Same as right triangle.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a triangle with one right angle
Sorry, no etymologies found.
Given this rule for constructing a right angle, about whose reason the Egyptian who used it never bothered himself, and the mind of PYTHAGORAS, searching for its full significance, made that gigantic geometrical discovery which is to this day known as the Theorem of PYTHAGORAS -- the law that in every right-angled triangle the square on the side opposite the right angle is equal in area to the sum of the squares on the other two sides. 7 The importance of this discovery can hardly be overestimated.