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Definition of equilateral triangle noun from the Oxford Advanced Learner's Dictionary

equilateral triangle

noun
 
/ˌiːkwɪˌlætərəl ˈtraɪæŋɡl/
 
/ˌiːkwɪˌlætərəl ˈtraɪæŋɡl/
(geometry)
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  1. a flat shape with three straight sides that are all the same length
See equilateral triangle in the Oxford Advanced American Dictionary
Check pronunciation: equilateral triangle

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adverb
 
 
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