Detroit. Public schools. Dept. of instruction, teacher training and research. [from old catalog], Kepler, Frank Roy. [from old catalog] · Detroit · leaf 13
pe ofthe surface, for the surface is parallel to the auxiliary plane. 12 It will be observed in Fig. 11, that the Trace of the Auxil-iary Plane on V is parallel to the Trace of the Cutting Planeon V, for the auxiliary plane is assumed parallel to the cuttingplane. Projecting lines drawn from the… … riG. /&projection on the auxihary plane and on the V plane. Whenthe auxihary plane has been brought into the same plane withH and V, the corresponding lines of projection on V and on theauxihary plane wih he in the same straight hue perpendicularto the auxiliary trace on V and also to the trace…
Projection
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