Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 139
both surfaces and containing the given line,which is an element of ooe of them, will bethe required plane. Since one, and only onemeridian plane at a point of tangency will beperpendicular to the tangent plane, and as thesurfaces of revolution have a common axis, itfollows that one meridian plane… … HYPERBOLOID OF REVOLUTION OF ONE NAPPE 123 Method. 1. Draw the principal meridiansection of the hyperboloid of revolutionwhich has the given line for its generatrix.2. Draw a tangent to the principal meridiansections of both surfaces. 3. Revolve thisline about the axis of the surfaces until…
Geometry, Descriptive
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