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 85
fully remembered,that the so-found point K or L, must be joined to S or Nrespectively. 8uch lines, KS, LN, M C.V., etc., will all passthrough same point X, which may be considered as a locusfor all such lines. For convenience, however, the line O C.V.should be used, unless the solid be directly in… … THE CONE. 81 sary to draw the tangents from it to the circle. We give aparticular example:— Draw a cone whose base = 6 in diameter and slant height 6.The cone lies on its side; plane of base, i_ to P.P., and theline joining the centre of base w4th the vertex is parallel tothe P.P. and 4 from it.…
Geometrical drawing · Perspective
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