base angle


Definition of base angle

: either of the angles of a triangle that have one side in common with the base

Examples of base angle in a Sentence

Recent Examples on the Web It has been divided into two triangles by bisecting the base angle on the left side. Quanta Magazine, "How to Solve Our Three John Conway-Inspired Puzzles," 20 Nov. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'base angle.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of base angle

circa 1848, in the meaning defined above

Keep scrolling for more

Learn More about base angle

Time Traveler for base angle

Time Traveler

The first known use of base angle was circa 1848

See more words from the same year

Statistics for base angle

Cite this Entry

“Base angle.” Dictionary, Merriam-Webster, Accessed 3 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Comments on base angle

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


Test Your Vocabulary

February 2021 Words of the Day Quiz

  • squirrel in winter
  • Which is a synonym of perdure?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

 AlphaBear 2

Spell words. Make bears.

Love words? Need even more definitions?

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