Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 184
ing on its base on the H.P., with its longer edgesparallel to the v. p., and one of its sides inclined to the v. p. atan angle of 60^ Intersect the prism with a plane parallel to XY, and inclined tothe H.P. at an angleof 30. Scale J^ fullsize. Fig. 302. Project the prism(Prob. 171). Find thetraces… … Fig. 302. is the angle the cutting plane forms with the H.P. Draw lines from each point in the plan perpendicular to ^E,and meeting it in the points C, B, D, A. With e as centre, andeach of these points as radii, draw arcs; and where they meet XYdraw perpendiculars till they meet ^yin the points C,…
Geometrical drawing · Design · Drawing
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