Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 130
rsection of the planeX with the plane of the lines A and B. The projection Dvintersects C at ev, which, for the same reasoning as that givenin Problem 13, must be one projection of the point in whichC intersects the plane of A and B. Finally, eh is found by pro-jecting from ev. Note that in this… … tersecting lines A and B. Pass through cd a profile plane.The plane of A and B intersects the profile plane in theline ab. By means of a profile projection it is readily foundthat the lines ab and cd intersect in the point e, the requiredpiercing point. In this figure the ground line is not…
Geometry, Descriptive
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