# Rechendreieck

## English translation: triangle solution diagrams

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 14:46 Feb 8, 2018
German to English translations [PRO]
Science - Mathematics & Statistics
 German term or phrase: Rechendreieck This is used in a book on mathematics. The only text is "Terme in Rechendreiecken", followed by pictures of triangles with terms inside them. e.g. a triangle split in three with a circle in the middle joining the three lines inside. The three segments are marked "a", "b" and "c", and the outer sides "ab", "ac" and "bc". Another triangle has terms inside "a + 2b", "b" and "2a + b" I can find no English term for this - so far I have used "calculating triangle", but I suspect I am wrong.
 Sarah Lewis-MorganGermany Local time: 23:24
 English translation:triangle solution diagrams Explanation:Based on your description, they are showing mapped out relations between sides, angles or areas of the triangle. https://en.wikipedia.org/wiki/Solution_of_triangles Solution of triangles (Latin: solutio triangulorum) is the main trigonometric problem of finding the characteristics of a triangle (angles and lengths of sides), when some of these are known.--------------------------------------------------Note added at 2 hrs (2018-02-08 17:30:23 GMT)--------------------------------------------------I don't like "calculation" for these. The children only need to know addition and subtraction (maybe multiplication/division). The point is following the rules of the game. Maybe "triangle game puzzles." More examples: http://www.matheaufgaben.net/arbeitsblaetter/rechendreiecke/ Hier sehen Sie alle verfügbaren Varianten des Aufgaben-Typs "Rechendreieck" für die 1. und 2. Klasse aufgelistet. Diese beinhalten Addition, Subtraktion und Logik.
Selected response from:

herbalchemist
Germany
Local time: 23:24
Grading comment
 Thank you.4 KudoZ points were awarded for this answer

Summary of answers provided
3 +1triangle solution diagrams
 herbalchemist
3 +1Calculation triangle puzzles
 Irene3

Discussion entries: 5

## Answers

1 hr   confidence: peer agreement (net): +1
Calculation triangle puzzles

Explanation:
https://cesa5mathscience.wikispaces.com/Rechendreieck

https://www.youtube.com/watch?v=hkHmYh4EsGE

or just 'calculation triangles'

 Irene3IrelandLocal time: 22:24Native speaker of: English

Peer comments on this answer (and responses from the answerer)
agree  DIV1: Of those two, I prefer "calculation triangles". Or (as a loose translation) "triangle puzzles".
 21 days
-> Thank you.
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1 hr   confidence: peer agreement (net): +1
triangle solution diagrams

Explanation:
Based on your description, they are showing mapped out relations between sides, angles or areas of the triangle.

https://en.wikipedia.org/wiki/Solution_of_triangles
Solution of triangles (Latin: solutio triangulorum) is the main trigonometric problem of finding the characteristics of a triangle (angles and lengths of sides), when some of these are known.

--------------------------------------------------
Note added at 2 hrs (2018-02-08 17:30:23 GMT)
--------------------------------------------------

I don't like "calculation" for these. The children only need to know addition and subtraction (maybe multiplication/division). The point is following the rules of the game. Maybe "triangle game puzzles."

More examples:
http://www.matheaufgaben.net/arbeitsblaetter/rechendreiecke/
Hier sehen Sie alle verfügbaren Varianten des Aufgaben-Typs "Rechendreieck" für die 1. und 2. Klasse aufgelistet. Diese beinhalten Addition, Subtraktion und Logik.

 herbalchemistGermanyLocal time: 23:24Native speaker of: EnglishPRO pts in category: 8
Grading comment
 Thank you.

Peer comments on this answer (and responses from the answerer)
agree  philgoddard: I think you've misunderstood the context (it's not about geometry), but your answer still works. There are lots of terms you could use, and Irene's solution is another example.
 12 mins
-> Thanks, Phil!

neutral  DIV1: "Triangle solution diagrams" could be possible, but the fact that the present context is quite different from that described in the linked Wikipedia article suggests that another (more distinct) expression may be more apt here.
 21 days
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