Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 157
° with XY. Onthe line ab con-struct an equilateraltriangle ahc. Bisecteach of the anglesat ^, 6, and c bylines meeting at d.This completes theplan. To find the alti-tude of the eleva-tion, produce theline bd to e, and atd draw the line dfperpendicular to eh.With b as centre, and radius be, draw an… … Fig. 261. 192. To project the same solid tilted on to one of its angular pointswith its base inclined at an angle of 20^ with H.P. Scale ^V fullsize. Fig. 261 B. Fix the point k on XY, and draw the line kk at an angleof 20° with it, and equal in length to the line ba (Fig. 261 a). Asthis elevation…
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
