Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 71
Fig. m. Fn;. 94. here the projection on the secondary Fplane gives informationabout the size, shape, and position of the prism which is notdirectly obtainable from the original ^-projection. 72. The Two V-Projections Compared. The relation betweentwo ^-projections of an object is the same,…
Geometry, Descriptive
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