Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 110
Fig. 151. Fig. 152. Example 3. When the given data are sufficient to determineone trace of the plane, a very useful auxiliary line is one ofthe principal lines (§ 99) of the plane itself. Let A and B,Fig. 152, be sufficient to locate VQ but not HQ. Assume apoint in one of the given lines, as point…
Geometry, Descriptive
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