Practical plane and solid geometry for advanced students, including graphic statics, adapted to the requirements of the South Kensington syllabus (1899)
Harrison, Joseph, Baxandall, George Albert · London Macmillan · leaf 248
are turned back about their respectiveground lines into the horizontal plane. It should be observed that the angle von is the trueinclination, 6, of the plane to the ground. Figs. (l>) and (c) show two other examples of thisproblem. In Fig. (l>) the plane vth is the same as in Fig.(a), but xy… … By means of the construction just given, many problemson the oblique plane may be at once converted into cor-responding problems on the inclined plane, and therebysimplified. This method of attacking such examples is amost valuable one, on account of its wide applicability,and should become quite…
