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 117
Let AD be the given altitude ; at A and D draw perpen-diculars, and with A as centre and any distance describe anarc EF ; with D as centre and any distance less than DAdescribe an arc to cut arc in E and F ; join AE and AF, andproduce them to base, forming isosceles triangle ABC. (Fig.80.) No.… … 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…
Geometrical drawing · Perspective
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