Meaning of “set square” in the English Dictionary

british dictionary

"set square" in British English

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set squarenoun [ C ]

uk /ˈset ˌskweər/ us /ˈset ˌskwer/ UK US triangle

a flat piece of metal or plastic in the shape of a triangle with one angle of 90°, used for drawing angles


(Definition of “set square” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)