Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 86
Fig. 110. Fig. ill. Example 6 (Fig. 111). A torus, cut by two planes parallelto V. The X section, wholly on the hack of the surface, isinvisible. The FTsection, entirely on the visible part of thetorus, is wholly visible. The true, size of each section appears at once. 66 DESCRIPTIVE GEOMETRY [IX,…
Geometry, Descriptive
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