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Definition right-angled triangle in British English

right-angled triangle noun

[countable] noun
/ˌraɪt æŋɡ(ə)ld ˈtraɪæŋɡ(ə)l/
1

a flat shape with three straight sides and three angles, one of which is a right angle

Synonyms and related words
Definition right-angled triangle in British English