Perspective and geometrical drawing adapted to the use of candidates for second and third-class teachers' certificates (1887)
McGuirl, Thomas H. [from old catalog] · Toronto, W. Briggs; · leaf 30
,and make BA=3 (length of line); join B C.Y. and A C.Y.From B measure off BE = 4 (distance within Y.Y,)^ joinE LMP, cutting B C.Y. in D; through D draw DC to lineIk. C.Y. and parallel to AB. CD is line required, for it isequal to AB, and its near extremity D is same distance tothe left that B is,… … Draw H.L., B.L., L.D., as before, and mark point RMP.Make OC = 4, join C C. Y. From C measure off CB = 2^, andfrom B mark off BA=3 (length of line) ; join B RMP andA RMP, to cut C C.Y. in E, D. ED is the line required, forDE is parallel to LD, and therefore perpendicular to BL.EC = BC and DC = AC,…
Geometrical drawing · Perspective
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
