
4 for me but only with a bit of help when I couldn't come up with any word at all that fitted. Heard of it (vaguely) but another one my vocabulary passed by. And English language was my best O level subject...........Maybe if I'd taken it for A level rather than concentrating on STEM...... Can't remember it ever appearing in an engineering report............![]()
Maybe it’s dropped out of use but it was common in school mathematics.
I just looked at a modern maths syllabus and the word does not appear there whereas in the Wiki entry for Euclidean geometry there are 51 occurrencesHaving looked up the meaning I see how it applies, but I don't remember it ever being used at school or college