Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 69
Fig. 48 b 52 DESCRIPTIVE GEOMETRY [IV, § 44 I … Fig. 49 In Fig. 49, the line ah pierces V at vt, H at ht, and P at pt. Follow the line outfirst on V, then onH; and visualizeit. Remejnberingthat pt and pf arethe H and V pro-jections of the Ptrace, construct theP projection ofthe line. Then theposition of the Ptrace is apparent. EXERCISE SHEET…
Geometry, Descriptive
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