An elementary treatise on analytical geometry : embracing plane co-ordinate geometry, and an introduction to geometry of three dimensions (1869)
Johnson, William Woolsey, 1841-1927 · Philadelphia : J.B. Lippincott · leaf 56
b; hence BN and … 52 THE STRAIGHT LINE. CM cut AO in the same point, each cutting off one-third of itslength. Thus we have not only demonstrated the existence of acommon point, but found its position on the line AO. 67. The three lines here proved to meet in a point are calledthe bisectors of the sides of the…
Geometry, Analytic
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