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 110
45° with P.P.(c) When opened perpendicularly to P.P. GEOMETRICAL DEAWING. 105 GEOMETEICAL DEAWING. To construct the following figures, pupils should providethemselves with a pair of good compasses with pen attach-ment, and a ruler, with marks for inches and fractions of aninch. No proof is… … Fig. 63.- Fig. 64. Let AB be the given line, and let B be a point at whichthe perpendicular to AB is to be drawn. In first, take anypoint C above, and with distance CB describe circle, cuttingAB in E; join EC and produce to meet circumference in D;join DB, which will be the perpendicular required.…
Geometrical drawing · Perspective
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
