单词 | orthocentre |
释义 | orthocentre Geom.|ˈɔːθəʊˌsɛntə(r)| [f. ortho- + centre.] The point at which the perpendiculars from the angles of a triangle on the opposite sides intersect.
1869Besant Conic Sect. 131 If a rectangular hyperbola circumscribe a triangle, it passes through the orthocentre. 1885C. Leudesdorf Cremona's Proj. Geom. 273 The directrices of all parabolas inscribed in a given triangle meet in the same point, viz. the orthocentre of the triangle. |

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