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 280
of the bases of the two ver-tical cones, then nm is the horizontal trace of the requiredplane (there are two such), and the vertical trace is readilydrawn because A is a point in the plane. It will be obvious that since the plane LMN touchesthe two upright cones, it must pass through A and touchthe… … Examples. —1. A line AB is parallel to the vertical plane anddistant i| therefrom ; its inclination to the ground is 500. De-termine the traces of a plane which makes 300 with AB and hasan inclination of 6o°. Note.—Observe that there are limits to the data in thisproblem. Thus the inclinations of…
