Perspective and geometrical drawing adapted to the use of candidates for second and third-class teachers' certificates (1887)
McGuirl, Thomas H. [from old catalog] · Toronto, W. Briggs; · leaf 131
on EE, 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. JTo. 25.—To draw a tangent to an ellipse (a) from a pointin the circumference.
Geometrical drawing · Perspective
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