Perspective and geometrical drawing : adapted to the use of candidates for second and third-class teachers' certificates (1887)
McGuirl, Thos. H. (Thomas H.) · Toronto, Ont. : W. Briggs · leaf 67
Here take OA, OB. each = 2; upon AB describe squareACDB: bisect BD in E, and draw EM parallel to CD;describe semicircle and find points F, G, as already shown.Make BK = BD, BH = BE and KL = DE: join L MP,K MP, etc.; also A C.Y., G C.V., etc.; and on eight pointsthus formed describe circle required.… … Here take A 5 to right of 0 ; erect the perpendicular AB.2 = radius of given circle; join B C.V. and A C.Y.; take C2 to left of A; join C MP, cutting A C.Y. in D. Draw DEparallel to AB ; then with centre E and distance ED describecircle required. For AD = AC = BE: then E is 2 withinP.P. and 5 to…
Geometrical drawing · Perspective
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