Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 203
ilar re-marks apply. 161. Projection of a Point inthe Surface of a Cone or Cylin-der. Only one projection ofa point lying in a conical orcylindrical surface can be as-sumed. The other projectionof the point may be foundby means of an element ofthe surface, as follows. Let a cone be given as inFig.… … XIX, § 161] TAXGEXT PLAXES 18.;
Geometry, Descriptive
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