equilateral triangle

noun

Definition of equilateral triangle

mathematics
: a triangle in which all three sides are the same length

Learn More about equilateral triangle

Statistics for equilateral triangle

Cite this Entry

“Equilateral triangle.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/equilateral%20triangle. Accessed 9 December 2019.

Comments on equilateral triangle

What made you want to look up equilateral triangle? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

contradictory or incongruous words

Get Word of the Day daily email!

Test Your Vocabulary

Semantic Drift Quiz

  • a twisty river
  • Which of the following was once a synonym for fun?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!