Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 221
next step is to draw a tine,J, which shall be tangent to the base of the cylinder and at 200 DESCRIPTIVE GEOMETRY [XIX, § 162 the same time parallel to the plane X. This line must lie inthe plane, Z, of the base of. the cylinder (§ 153) ; it must alsobe parallel to some line in the plane X (§ 104)… … Fig. 289. L. Through J pass the required tangent plane, Q, paralleltoX A second result, plane T, is found by means of the tangentline K, also parallel to L. Here VT is not located either bythe F-trace of K or the point where HT intersects GL. Theconstruction used is to assume some point, as e, on…
Geometry, Descriptive
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