Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 117
Fig. 163. Fig. Ifi4. c draw the auxiliary line B perpendicular to Q (§ 112). Findthe plane T, containing the lines A and B (Prob. 6, § 106);this is the required plane. Special Case I. If the given line is a profile line, the gen-eral method applies ; but the use of a profile projection may…
Geometry, Descriptive
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
