Desargues's theorem


De·​sargues's theorem
: a theorem in geometry: if the junction lines of corresponding vertices of two triangles are concurrent the junction points of the corresponding sides lie on the same straight line, the converse also being true

Word History


after Gérard Desargues †1662 French mathematician

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Dictionary Entries Near Desargues's theorem

Cite this Entry

“Desargues's theorem.” Dictionary, Merriam-Webster, Accessed 14 Apr. 2024.

Love words? Need even more definitions?

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