MHB How to Pronounce A' in Transformations | ASK

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The discussion centers on the pronunciation of A' in the context of transformed triangles, specifically triangle A'B'C'. In American English, it is commonly pronounced as "A prime," while in British English, "A dash" is also used, though some find this term outdated. Participants express confusion over various pronunciations heard in educational videos, including "A point," "A prune," and "A plum." The consensus leans towards "A prime" being the most accurate and widely accepted pronunciation. Overall, clarity on the pronunciation of A' is sought among users familiar with different English dialects.
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If an ABC triangle is transformed, the result will be triangle A'B'C'. In my country, A' is read as "A accent". However, when I saw this transformation video (Video: Transformations - Translation, Reflection, Dilation, and Rotation | Educational Video | WatchKnowLearn Educational Videos | WatchKnowLearn), they seem to pronounce A' as "A prime", "A point", "A prune", "A plum", whichever was right since I suck at English-listening. So, can you people tell me what exactly do they say how to pronounce A'?
 
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Monoxdifly said:
If an ABC triangle is transformed, the result will be triangle A'B'C'. In my country, A' is read as "A accent". However, when I saw this transformation video (Video: Transformations - Translation, Reflection, Dilation, and Rotation | Educational Video | WatchKnowLearn Educational Videos | WatchKnowLearn), they seem to pronounce A' as "A prime", "A point", "A prune", "A plum", whichever was right since I suck at English-listening. So, can you people tell me what exactly do they say how to pronounce A'?
In American English it would be "A prime". In British English it would be more usual to say "A dash".
 
Ah, thank you.

Did someone edit my post?
 
I pronounce it “A prime”. (“A dash” sounds funny to me – it would appear to refer to something like A—.)
 
Olinguito said:
I pronounce it “A prime”. (“A dash” sounds funny to me – it would appear to refer to something like A—.)

Chambers dictionary gives one of the meanings of dash as "an acute accent used in algebra and in lettering of diagrams as a discriminating mark". But perhaps that is now a bit out of date – I suspect that younger people may be more likely to call it a prime.
 
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