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 118
Fig. 78. Let BACD be a circle or arc; draw any two chords AB,CD, and draw arcs EF and GH, bisecting the chords, respec-tively; join EF and HG and produce them to meet in K;then K will be the centre, and if K and D be joined, KDwill be a radius, and a circle may be thus described with itwith the… … Fig. 79. Let C be a given point in the circumference; let A be thecentre; join CA; at C erect the perpendicular CE, which willbe tangent required. Also if H be the given point, join AHand produce it, making HG equal to part produced; bisectthis line by KL, which will also be a tangent at point H.…
Geometrical drawing · Perspective
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
