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 116
Let ABO be the given triangle; bisect the angle at A byAD, and the angle at B by BD, cutting AD in D; draw DEperpendicular to AB at point E; then with centre D anddistance DE describe the circle. (Eig. 76.) No, 9,—To draw a circle through three given points, which,however, cannot be in the same… … Fig. 77. 112 DRAWING. Let A, B, C be the given points; join them to form a tri-angle; with centre A, and distance greater than half of AC,describe an arc; with centre C and same distance, describe anarc to cut former; join points of section of arcs; this line willpass through the centre of the…
Geometrical drawing · Perspective
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