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 125
esented by 5-2 ——j or f of 180; hence it is ahcays necessary to draw through the second point of division. (5) In a given circle. Let ABE be the given circle; draw any diameter FC, anddi%dde it into as many equal parts as the figure is to havesides (in this case five) ; with centre C and distance… … No. 19.—To construct a regular pentagon on a given lineby a special method. Let AB be the given line ; describe arcs CAD and CBD,with radius AB ; join CD : with centre D and distance sameas AB describe arc EABF, cutting former arc in E and F. GEOMETRICAL DRAWING. 121 Join FG and EG, and produce…
Geometrical drawing · Perspective
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