Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 267
Fig. 309. 246 DESCRIPTIVE GEOMETRY [XXII, § 181 Construction (Fig. 310). The given solid is a pyramid.The points in which the lateral edges 0-1, 0-2, 0-3, 0^4 inter-sect the given plane Q are found by auxiliary planes X, Y, Z, … Fig. 310. W perpendicular to H. The plane X (HX, VX) locates thecommon point n, after which the F-traces of the remainingplanes are not needed. The required intersection is thequadrilateral 11-12-13-14. CHAPTER XXIII INTERSECTION OF PLANES WITH SURFACES OFREVOLUTION 182. The Intersection of a…
Geometry, Descriptive
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