Higher geometry; an introduction to advanced methods in analytic geometry (1922)
Woods, Frederick S. (Frederick Shenstone), 1864- · Boston, New York, Ginn and Company · leaf 58
the straight lineconnecting A and A,and by aa the pointof intersection of a anda. Then the two the-orems stated above arerespectively: If the straight linesAA, BB, and CC meetin a point 0, the points aa, bb, and cc lie on a straight line o. If the points aa, bb, and cc lie on a straight line o, the… … Fig. 12 46 TWO-DIMENSIONAL GEOMETRY Take \ABC\ as triangle of reference and \ \ as the unit~ I aoe J f ... ^oj ^^ Vline J Then the coordinates of |a j are 0: 0:1, those of | j } are 0:1: 0, those of (^ are 1: 0: 0, and those of \°\ are 1:1:1. By § 28 the coordinates of -! , J- are 1:1:1+X, those of…
Geometry, Analytic
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