Anthony, Gardner Chace, 1856- [from old catalog], Ashley, George Francis, [from old catalog] joint author · Boston, D. C. Heath & co. · leaf 80
his arc.There may be two solutions, as VT may beabove or below GL. 90. To determine the traces of a plane,knowing the angles which the plane makes withboth coordinate planes. Construction. Fig. 138. Let it be re-quired to construct the traces of plane T, mak-ing an angle ^ with l^and angle a with… … the point of tangency of the sphere and pldneT, conceive to be drawn the lines of maximuminclination with ^ and V. On revolving theline of maximum inclination with V, into E,about the horizontal axis of the sphere, as anaxis, it will continue tangent to the sphere,as at A!, making an angle with GL…
Geometry, Descriptive
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.