Dictionary.com
Word
of the
Day
Translate
Games
Everything After Z
Thesaurus.com
Favorites
Dictionary.com
Thesaurus.com
My Account
Log Out
Log In
Try Our Apps
definitions
definitions
synonyms
translations
Follow @dictionarycom
follow Dictionary.com
Avoid these words. Seriously.
Favorite Button
CITE
Translate
Facebook
Share
Twitter
Tweet
Google+
Share
triangle inequality
Word Origin
noun
,
Mathematics.
1.
the theorem that the absolute value of the sum of two quantities is less than or equal to the sum of the absolute values of the quantities.
2.
the related theorem that the magnitude of the sum of two vectors is less than or equal to the sum of the magnitudes of the vectors.
3.
(for metric spaces) the related theorem that the distance between two points does not exceed the sum of their distances from any third point.
Origin of
triangle inequality
Expand
1960-1965
First recorded in
1960-65
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
Cite This Source
Discover our greatest slideshows
Six words that can ruin your...
10 Of The Saddest Words (Or...
The Oldest Words In The English...
10 Words That Will Show Your Age
Browse more topics on our blog
What Is the Difference Between Discreet and Discrete?
Learn the correct uses of these two commonly confused homophones.
What Character Was Removed from the Alphabet?
What mistaken pronunciation gave this character its name?
Apostrophes 101
This small mark has two primary uses: to signify possession or omitted letters.
How Do I Get a Word into the Dictionary?
People invent new words all the time, but which ones actually make it?
Word of the Day
Nearby words for triangle inequality
trials and tribulations
trialware
triamcinolone
trianda
triangle
triangle inequality
triangle of auscultation
triangle of forces
triangle of safety
triangle sirloin
triangle trade
Word Value for
triangle
9
12
Scrabble
Words With Friends
Extra Cozy Words We Need Right Now