Young, George, jr, Baxter, Hubert Eugene, joint author · New York, The Macmillan Co. · leaf 38
Fig. 16 Ill, § 171 PROJECTION OF LINES 21 … projections of some line in space. This fact is readily seen byreference to Fig. 16. Let alV and o^ be any two lines drawnas above. Consider nowFig. 17, where these pro-jections are shown in anisometric drawing.Through a°b° pass a planeperpendicular to V, andthrough a*6* a plane per-pendicular to…
Geometry, Descriptive
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