释义 |
right-angled triangle noun[ C ] UKuk /ˌraɪt.æŋ.ɡəld ˈtraɪ.æŋ.ɡəl/ us /ˌraɪt.æŋ.ɡəld ˈtraɪ.æŋ.ɡəl/(USright triangle) a triangle that has one angle of 90°直角三角形 Nanang81/iStock/Getty Images Plus/GettyImages SMART Vocabulary: related words and phrases Geometrical shapes -cornered circularly congruently conic cylindrically lozenge orbicular ovally ovoid parallelogram pentagon polyhedron polytope prism pyramid quadrilateral rectangle rectangular rhombus three-dimensional |