Problem Fagnana

Fagnano's problem - optimization problem about determining the inscribed triangle of minimal perimeter inside a given acute triangle. Article “Problem Fagnana” in Polish Wikipedia has 26 points for quality (as of July 1, 2026). The article contains 10 references and 5 sections.

This article has the best quality in Greek Wikipedia. However, the most popular language version of this article is English.

Since the creation of article “Problem Fagnana”, its content was written by 9 registered users of Polish Wikipedia and edited by 96 registered Wikipedia users in all languages.

The highest Authors Interest rank from 2001:

• Local (Polish): #603 in September 2015
• Global: #100091 in December 2016

The highest popularity rank from 2008:

• Local (Polish): #49313 in October 2015
• Global: #990619 in June 2017

There are 13 language versions for this article in the WikiRank database (of the considered 55 Wikipedia language editions).

The quality and popularity assessment was based on Wikipédia dumps from July 1, 2026 (including revision history and pageviews for previous years).

The table below shows the language versions of the article with the highest quality.

#	Language	Quality grade	Quality score
1	Greek (el) Πρόβλημα Φανιάνο		31.7138
2	Polish (pl) Problem Fagnana		25.9939
3	English (en) Fagnano's problem		21.2888
4	Finnish (fi) Fagnanon lause		18.2088
5	Turkish (tr) Fagnano problemi		10.7746
6	French (fr) Problème de Fagnano		9.9485
7	Hebrew (he) בעיית פניאנו		8.2861
8	Spanish (es) Problema de Fagnano		8.2218
9	Japanese (ja) ファニャノの問題		7.7908
10	Georgian (ka) ფანიანოს პრობლემა (შვარცის სამკუთხედი)		6.3123

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The following table shows the most popular language versions of the article.

The most popular language versions of the article "Problem Fagnana" in all the time

#	Language	Popularity award	Relative popularity
1	English (en) Fagnano's problem		41 390
2	Russian (ru) Задача Фаньяно		17 174
3	French (fr) Problème de Fagnano		12 042
4	German (de) Fagnano-Problem		8 359
5	Polish (pl) Problem Fagnana		4 344
6	Spanish (es) Problema de Fagnano		1 971
7	Portuguese (pt) Problema de Fagnano		1 698
8	Japanese (ja) ファニャノの問題		766
9	Finnish (fi) Fagnanon lause		568
10	Hebrew (he) בעיית פניאנו		252

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The following table shows the language versions of the article with the highest popularity in the last month.

The most popular language versions of the article "Problem Fagnana" in June 2026

#	Language	Popularity award	Relative popularity
1	English (en) Fagnano's problem		277
2	Russian (ru) Задача Фаньяно		36
3	Japanese (ja) ファニャノの問題		29
4	French (fr) Problème de Fagnano		24
5	Portuguese (pt) Problema de Fagnano		17
6	German (de) Fagnano-Problem		15
7	Polish (pl) Problem Fagnana		14
8	Spanish (es) Problema de Fagnano		8
9	Hebrew (he) בעיית פניאנו		5
10	Georgian (ka) ფანიანოს პრობლემა (შვარცის სამკუთხედი)		5

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The following table shows the language versions of the article with the highest Authors’ Interest.

Language versions of the article "Problem Fagnana" with the highest Authors Interest (number of authors). Only registered Wikipedia users were taken into account.

#	Language	AI award	Relative AI
1	French (fr) Problème de Fagnano		19
2	German (de) Fagnano-Problem		18
3	English (en) Fagnano's problem		18
4	Russian (ru) Задача Фаньяно		13
5	Polish (pl) Problem Fagnana		9
6	Finnish (fi) Fagnanon lause		4
7	Hebrew (he) בעיית פניאנו		4
8	Greek (el) Πρόβλημα Φανιάνο		3
9	Portuguese (pt) Problema de Fagnano		3
10	Spanish (es) Problema de Fagnano		2

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The following table shows the language versions of the article with the highest Authors’ Interest in the last month.

Language versions of the article "Problem Fagnana" with the highest AI in June 2026

#	Language	AI award	Relative AI
1	German (de) Fagnano-Problem		0
2	Greek (el) Πρόβλημα Φανιάνο		0
3	English (en) Fagnano's problem		0
4	Spanish (es) Problema de Fagnano		0
5	Finnish (fi) Fagnanon lause		0
6	French (fr) Problème de Fagnano		0
7	Hebrew (he) בעיית פניאנו		0
8	Japanese (ja) ファニャノの問題		0
9	Georgian (ka) ფანიანოს პრობლემა (შვარცის სამკუთხედი)		0
10	Polish (pl) Problem Fagnana		0

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The following table shows the language versions of the article with the highest number of citations.

Language versions of the article "Problem Fagnana" with the highest Citation Index (CI)

#	Language	CI award	Relative CI
1	Greek (el) Πρόβλημα Φανιάνο		89
2	French (fr) Problème de Fagnano		79
3	English (en) Fagnano's problem		6
4	German (de) Fagnano-Problem		4
5	Spanish (es) Problema de Fagnano		3
6	Japanese (ja) ファニャノの問題		3
7	Portuguese (pt) Problema de Fagnano		2
8	Russian (ru) Задача Фаньяно		2
9	Hebrew (he) בעיית פניאנו		1
10	Turkish (tr) Fagnano problemi		1

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#	Language	Value
de	German Fagnano-Problem
el	Greek Πρόβλημα Φανιάνο
en	English Fagnano's problem
es	Spanish Problema de Fagnano
fi	Finnish Fagnanon lause
fr	French Problème de Fagnano
he	Hebrew בעיית פניאנו
ja	Japanese ファニャノの問題
ka	Georgian ფანიანოს პრობლემა (შვარცის სამკუთხედი)
pl	Polish Problem Fagnana
pt	Portuguese Problema de Fagnano
ru	Russian Задача Фаньяно
tr	Turkish Fagnano problemi

Best Rank

Polish: #49313 10.2015

Global: #990619 06.2017

Best Rank

Polish: #603 09.2015

Global: #100091 12.2016

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The WikiRank project is intended for automatic relative evaluation of the articles in the various language versions of Wikipedia. At the moment the service allows to compare over 50 million Wikipedia articles in 55 languages. Quality scores of articles are based on Wikipedia dumps from July, 2026. When calculating current popularity and AI of articles data from June 2026 was taken into account. For historical values of popularity and AI WikiRank used data from 2001 to 2026... More information