Phillips, Andrew Wheeler, 1844- [from old catalog] · [New York, Press of J. J. Little & co.] · leaf 8
the same way as the corresponding line of Fig. 4. At Zr / / /J, ^^—» ^ f S each of the points of division a d c, etc., a line is drawn, making anangle of 60° with O g. The segments on each of these lines betweenO g and the curve and itshorizontal diameter arehalf the correspondingsegments in Fig.… … 8 UNIVERSITY EXTENSION. AB is a rod perpendicular to ttiis board through a given point;D C, a Hne of the board parallel to one of its edges. O E is per- C/
Geometry
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