Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 217
(J isevidently parallel to GL. The plane T (PT, HT, VT), tan-gent at the point b in the element F, is obtained in a similarmanner. Case III. Tlie base of the cylinder does not lie in H, V, orP (Fig. 284). The construction is entirely similar to thai Eorthe corresponding case of the cone (Prob. 31,… … Fig. 284. Problem 35. To pass a plane tangent to a cylinder through agiven point without the surface. (Two results.) Analysis. Through the given point pass a line parallel tothe elements of the cylinder. Since the recpiired tangentplane contains some element of the surface, this line must liein the…
Geometry, Descriptive
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