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 123
scribe an arc MS, and with centre O, and same distancedescribe an arc RP; with centre G, and distance equal toMN or OP, describe a circle cutting GD in H. Make arcHK = RP and HL = MS ; join GK and GL, and produce themto the circumference in E and F respectively. Draw tangentsat E and F to meet the… … Let KME be the given circle, and divide it (in this case)into six equal parts. Take centre O, and join any two, as OA,OB; bisect the angle AOB by OE, and at E draw a tangentCD ; produce OA and OB to meet the tangent in C and D. GEOMETRICAL DRAWING. 119 Bisect the angles at C and D by CF and DF,…
Geometrical drawing · Perspective
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