Talk:acute-angled triangle

RFD discussion: February–September 2019

The following information passed a request for deletion (permalink).

This discussion is no longer live and is left here as an archive. Please do not modify this conversation, but feel free to discuss its conclusions.

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acute-angled triangle

obtuse-angled triangle

right-angled triangle

• Keep - others have this. Also, not all angles have to be right angles - only one. Plus: if we include the term we can include an illustration which would be helpful. [As an aside, you can draw a triangle with three right angles on the surface of a sphere.] John Cross (talk) 08:11, 5 February 2019 (UTC)

https://www.merriam-webster.com/dictionary/right-angled%20triangle

https://www.collinsdictionary.com/dictionary/english/right-angled-triangle

https://dictionary.cambridge.org/dictionary/english/right-angled-triangle

We can include an illustration at right-angled, that's not an argument. Per utramque cavernam 17:59, 5 February 2019 (UTC)

By the way, if we go by the current results of Wiktionary:Votes/pl-2018-12/Lemming principle into CFI, that vote is not likely to pass. So the lemming argument isn't CFI-based either. Per utramque cavernam 18:25, 6 February 2019 (UTC)

right triangle

FYI, the relevant sense at right seemed to be absent, so I have had a go at adding it. Mihia (talk) 23:40, 2 February 2019 (UTC)

• Keep - John Cross (talk) 06:13, 6 February 2019 (UTC)

acute triangle

• Keep - John Cross (talk) 06:10, 6 February 2019 (UTC)

https://www.collinsdictionary.com/dictionary/english/acute-triangle

obtuse triangle

• Keep - John Cross (talk) 06:11, 6 February 2019 (UTC)

http://encyclopedia2.thefreedictionary.com/obtuse+triangle (McGraw-Hill Dictionary of Scientific & Technical Terms)

equilateral triangle

• Keep - recognised term. John Cross (talk) 06:31, 4 February 2019 (UTC)

https://dictionary.cambridge.org/dictionary/english/equilateral-triangle

isosceles triangle

• Keep recognised term John Cross (talk) 06:26, 4 February 2019 (UTC)

Cambridge Dictionary: https://dictionary.cambridge.org/dictionary/english/isosceles-triangle

Macmillan: https://www.macmillandictionary.com/dictionary/american/isosceles-triangle

Merriam-Webster: https://www.merriam-webster.com/dictionary/isosceles%20triangle

scalene triangle

• Keep 'scalene triangle' - John Cross (talk) 06:31, 6 February 2019 (UTC)

https://www.macmillandictionary.com/dictionary/american/scalene-triangle

I admit they're vaguely useful, but all of these are SOP. Delete the numerous SOP translations (such as French triangle rectangle) as well. Per utramque cavernam 18:08, 1 February 2019 (UTC)

I would say you have ordered them roughly in order from most delete-able to least, I am totally on board with deleting the first three, after that I am on the fence. - TheDaveRoss 18:26, 1 February 2019 (UTC)

An acute triangle is one with three acute angles whereas an obtuse triangle is a triangle with one obtuse angle. On that basis these are not entirely sum of parts. John Cross (talk) 08:03, 5 February 2019 (UTC)

• Delete the ones containing "-angled"; keep the rest. bd2412 T 15:14, 4 February 2019 (UTC)
• What BD said. Purplebackpack89 06:15, 6 February 2019 (UTC)
• Keep all above but make angled terms to be synonyms of main words. There are many names across the world referring to these objects that different from direct-translation. (This also applies to 4-side polygons and more.)--Octahedron80 (talk) 15:30, 10 February 2019 (UTC)
  • @Octahedron80: If we keep right triangle, acute triangle and obtuse triangle, then there's no need to keep the -angled entries too. Per utramque cavernam 17:32, 11 February 2019 (UTC)
  • No problem. --Octahedron80 (talk) 02:01, 12 February 2019 (UTC)
• Delete them all. Are mathematics students too obtuse to be able to look up the adjective and determine how it applies to their respective polygon? Maybe I better end here before I become to acute. -Mike (talk) 17:31, 14 February 2019 (UTC)
• I am inclined to keep them all, although less so for the "-angled triangle" items. Some of the reasoning is per talk:free variable; the entries are at the most expected search headwords, I figure. For right-angled triangle, the entry confirms to me this is actually used, and it is, and can be listed as a synonym in right triangle, and we can link to Google Ngram Viewer to see how common that is, and the user can select the British English there to see how common that is. Some of the items are also supported by WT:LEMMING, a principle with no consensual support. I would be happy to have the entries labeled "sum of parts" so that the SOP-averse readers can see that we are aware of the possible SOPitude. --Dan Polansky (talk) 11:52, 29 March 2019 (UTC)

• RFD kept: no consensus to delete. This is obtained easily for the items that do not end in "-angled triangle"; for those that do, I count 3 keeps and 5 deletes. --Dan Polansky (talk) 18:36, 6 September 2019 (UTC)