Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 146
G; one through the center ofthe torus; and one tangent at the bottom of the torus. Thepoints 7 and 8 of the intersection evidently lie in the plane X,which passes through the center of the torus parallel to V. CHAPTER XIV PROBLEMS INVOLVING THE REVOLUTION OF PLANES 133. A Line Lying in a Given… … Fig. 123 (repeated). Another method is to assume one of the projections of theline. As soon as either the H- or the F-projection of a line isassumed, the line becomes definite from the condition that itshall lie in the given plane. Problem 16. Given one projection of a line lying in a plane, tofind…
Geometry, Descriptive
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