Word.ws English Dictionary

Thales's theorem

Thales's theorem proper noun: a theorem stating that if A, B, and C are distinct points on a circle where the line AC is a diameter, the angle ABC is a right angle.

thales's theorem: a theorem stating that if A, B, and C are distinct points on a circle where the line AC is a...
Image: Inductiveload, Public domain, via Wikimedia Commons

Proper noun

Thales's theorem

  1. A theorem stating that if A, B, and C are distinct points on a circle where the line AC is a diameter, the angle ABC is a right angle.
  2. Synonym of intercept theorem.

Synonyms of Thales's theorem

Origin of Thales's theorem

Generally attributed to Thales of Miletus.

Questions about Thales's theorem

What does Thales's theorem mean?
Thales's theorem means a theorem stating that if A, B, and C are distinct points on a circle where the line AC is a diameter, the angle ABC is a right angle.
What part of speech is Thales's theorem?
Thales's theorem is a proper noun.

Words near Thales's theorem in the dictionary

  1. thale cresses
  2. thaler
  3. thalerophagous
  4. thalers
  5. Thales
  6. Thales's theorem
  7. Thalesian
  8. Thalesianism
  9. Thalestris
  10. thalfenisite
  11. thalfinine

Source and license

Adapted from Wiktionary: Thales's theorem (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “Thales's theorem.” Word.ws, https://word.ws/thales%27s_theorem. Based on Wiktionary, CC BY-SA 4.0.