Meanings
alternative Pythagoras' theorem · alternative theorem of Pythagoras
- geometryA mathematical theorem which states that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of those of the two other sides.
The Pythagorean theorem only applies to right triangles.
Synonyms: Baudhayana theorem, Gougu theorem
- functional analysisA generalization of the Pythagorean theorem for Euclidean triangles to Hilbert spaces.
Synonyms & antonyms
proper nounA mathematical theorem which states that the square of the length of the hypotenuse of a right triangle is equal to the sum of the squares of those of the two other sides.
Origin
- Ancient GreekΠυθαγόρας
- EnglishPythagorean theorem
Named after Pythagoras (from Ancient Greek Πυθαγόρας (Puthagóras)), the Greek mathematician and philosopher who by tradition is credited with the theorem’s discovery and proof.
More words from Ancient Greek
Full word history & related roots →Translations
Arabic مُبَرْهَنَةْ فِيثَاغُورَس
- مُبَرْهَنَةْ فِيثَاغُورَس (mubarhanat fīṯāḡūras)mathematical theorem
Bulgarian потагорова теорема
- потагорова теорема (potagorova teorema)mathematical theorem
Catalan teorema de Pitàgores, teorema de Pitàgoras
- teorema de Pitàgoresmathematical theorem
- teorema de Pitàgorasmathematical theorem
Chinese Mandarin 勾股定理, 畢達哥拉斯定理 /毕达哥拉斯定理
- 勾股定理 (gōugǔ dìnglǐ)mathematical theorem
- 畢達哥拉斯定理 /毕达哥拉斯定理 (Bìdágēlāsī-dìnglǐ)mathematical theorem
- 畢氏定理 /毕氏定理 (Bì-shì dìnglǐ)mathematical theorem
Czech Pythagorova věta
- Pythagorova větamathematical theorem
Dutch stelling van Pythagoras
- stelling van Pythagorasmathematical theorem
Finnish Pythagoraan lause
- Pythagoraan lausemathematical theorem
French théorème de Pythagore
- théorème de Pythagoremathematical theorem
German Satz des Pythagoras
- Satz des Pythagorasmathematical theorem
Hebrew משפט פיתגורס
- משפט פיתגורס (mishpát pitágoras)mathematical theorem
Hungarian Pitagorasz-tétel
- Pitagorasz-tételmathematical theorem
Icelandic Pýþagórasarregla, regla Pýþagórasar
- Pýþagórasarreglamathematical theorem
- regla Pýþagórasarmathematical theorem
- setning Pýþagórasarmathematical theorem
Irish teoirim Phíotagarásach
- teoirim Phíotagarásachmathematical theorem
Italian teorema di Pitagora
- teorema di Pitagoramathematical theorem
Japanese ピタゴラスの定理, 三平方の定理
- ピタゴラスの定理 (Pitagorasu no teiri)mathematical theorem
- 三平方の定理 (sanhēō no tēri)mathematical theorem
Latin theorema Pythagorae
- theorema Pythagoraemathematical theorem
Latvian Pitagora teorēma
- Pitagora teorēmamathematical theorem
Malay teorem Pitagoras
- teorem Pitagorasmathematical theorem
Polish twierdzenie Pitagorasa
- twierdzenie Pitagorasamathematical theorem
Portuguese teorema de Pitágoras
- teorema de Pitágorasmathematical theorem
Russian теоре́ма Пифаго́ра
- теоре́ма Пифаго́ра (teoréma Pifagóra)mathematical theorem
Spanish teorema de Pitágoras
- teorema de Pitágorasmathematical theorem
Swedish Pythagoras sats
- Pythagoras satsmathematical theorem
Turkish Pisagor teoremi
- Pisagor teoremimathematical theorem
Ukrainian теоре́ма Піфаго́ра
- теоре́ма Піфаго́ра (teoréma Pifahóra)mathematical theorem
Vietnamese định lí Pi-ta-go
- định lí Pi-ta-gomathematical theorem
Cite this entry
Pythagorean theorem. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/Pythagorean%20theorem
“Pythagorean theorem.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Pythagorean%20theorem. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “Pythagorean theorem,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/Pythagorean%20theorem.
Source: Pythagorean theorem on Wiktionary, CC BY-SA 4.0.