a triangle having a right angle (contrasted with oblique triangle).
What are the three places that form the Bermuda Triangle?
In March 1918, a U.S. Navy ship with a crew of 309 departed Barbados and was never seen again. Did the ship capsize? Is there a supernatural explanation? The area in which the ship disappeared is the infamous Bermuda Triangle. Also known as the Devil’s Triangle, it is a heavily traveled shipping lane in the Atlantic Ocean where ships and planes have been known to …
Alright vs. All Right
What’s the difference between alright and all right? Are all right and alright interchangeable? All right has a range of meanings including: “safe,” as in “Are you all right?” “reliable; good,” as in “That fellow is all right.” as an adverb, it means “satisfactorily,” as in “His work is coming along all right” “yes,” as in “All right, I’ll go with you.” The form alright is a one-word spelling …
Origin of right triangle
First recorded in 1920–25
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
US and Canadian a triangle one angle of which is a right angleAlso called (in Britain and certain other countries): right-angled triangle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
A triangle having a right angle.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A triangle that contains a right angle.
The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.