| 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. |