Young, George, jr, Baxter, Hubert Eugene, joint author · New York, Macmillan · leaf 108
Fig. 89, it will be seen that the line of intersection of the auxiliaryplane Y, with the given plane Z (ed), contains the requiredtrace, i, of lA on Z. VI, § 78] POINTS, LINES, AND PLANES 89 … Fio. 91 In Fig. 91, the operation is carripd out in projection. The plane Z and the line oh are given. The auxiliary plane Y is passed through the line o6 (§ 66). The line of intersection of Z and Y, cd, is next determined (§ 75). This line is seen to intersect the given line ah at i, which is the…
Geometry, Descriptive
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