Young, George, jr, Baxter, Hubert Eugene, joint author · New York, Macmillan · leaf 119
Fio. 101 … FiQ. 102 and that of the vertical trace ZZ. The point a itself lies in theaxis of rotation and therefore will not move during the rotation.It will be noticed also that the rabatted position of b lies on a line VI, § 93] POINTS, LINES,. AND PLANES 101 (fet*), passed through i* perpendicuhir to ZZ*,…
Geometry, Descriptive
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