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 113
equired oblong. (Fig. 68.) iVo. ^.—To divide a given line into (a) two equal parts. Fig-. GO. 108 DRAWING. Let AB be the given line; with centre A and distance equalto more than half of AB describe an arc, and with centre Band same distance describe an arc cutting former in C and D;join CD, cutting… … Fig. 70. Let AB be the given line and C the external point; at anypoint B and distance BC describe an arc to cut AB; with Cas centre and CB as distance describe an arc, and with B ascentre and distance equal to AC describe an arc cuttingformer arc in D; join CD, which will be parallel to AB.(Fig.…
Geometrical drawing · Perspective
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