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 120
BOG Fig. 81. Let AD be the given altitude ; through A, draw EAF per- GEOMETRICAL DEAWING. 115 pendicular to AD; with centre A describe any semicircleEGHF, and with centre F and distance FA, describe arc tocut arc GH in H; also with centre E and same distance de-scribe arc to cut GH in G. Join AG… … Let BAG be given angle and let the given point be at D;with centre A and any distance less than a side describe anarc CB ; with centre D and distance equal to AB describe arcEF; with centre E and distance equal to BC describe an arcto cut EF in F; join DF: then the angle EDF will be equalto the…
Geometrical drawing · Perspective
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