Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 179
el to Vx. Again, since no and 5are perpendicular, and no is parallel to Vx, the projection nfofand Bf are perpendicular (§ 110). Hence, from Af drawniOx perpendicular to By. Project from of on Bf to o* onBh, thence to ov on B. From oh draw ohnh perpendicular to Ah(see Prob. 25, Special Case I, §… … Special Case II (Eig. 239). The given lines, ab and cd,are both profile lines. Project both lines on to the same profile plane; the plane here used is theone containing the given line ab.Find the profile projections, apbpand cpdp. Then it is evident thatthe common perpendicular, ef, willproject on…
Geometry, Descriptive
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
