Perspective and geometrical drawing : adapted to the use of candidates for second and third-class teachers' certificates (1887)
McGuirl, Thos. H. (Thomas H.) · Toronto, Ont. : W. Briggs · leaf 118
Let AD be the given altitude ; through A, draw EAF per- GEOMETRICAL DRAWING. 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 and AH, and… … Let BAC 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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