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Definition of right-angled triangle noun from the Oxford Advanced Learner's Dictionary

right-angled triangle

noun
 
/ˌraɪt æŋɡld ˈtraɪæŋɡl/
 
/ˌraɪt æŋɡld ˈtraɪæŋɡl/
 (especially British English)
(North American English usually right triangle)
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  1. a flat shape with three straight sides and one right angleTopics Colours and Shapesc2
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clerk
noun
 
 
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