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BNC: 30959 COCA: 45843

hypotenuse

noun
/haɪˈpɒtənjuːz/
/haɪˈpɑːtənuːs/
(geometry几何)
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  1. the side opposite the right angle of a right-angled triangle(直角三角形的)斜边,弦
    Topics Maths and measurementc2
    Word Originlate 16th cent.: via Latin hypotenusa from Greek hupoteinousa (grammē) ‘subtending (line)’, from the verb hupoteinein (from hupo ‘under’ + teinein ‘stretch’).

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