Ames, William L. (William Lewis), 1855-, Wischmeyer, Carl · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 87
Fig. 138. 76 DESCRIPTIVE GEOMETRY determined by finding the shadow of its vertex and drawingtangent lines from this point to the base. The points oftangency determine the elements which are the lines ofshade. For finding the lines of shade on a solid of revolutionwith its axis vertical, and its…
Geometry, Descriptive
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