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 129
on FE, and produce each way tomeet the circumference in G and H; bisect GH in K, andwith centre K describe a circle to cut the ellipse in fourpoints N, O, R and P; join these to form a rectangular paral-lelogram; bisect each side and join the opposite points of sec-tion, and produce both ways to… … Fig. 97. No. 25.—To draw a tangent to an ellipse (a) from a pointin the circumference.
Geometrical drawing · Perspective
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