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 370
es of a plane which touches the givencone and is inclined at 6o° to the ground. 2. A sphere 1^- diameter has its centre l above the ground and 2-J in front of the vertical plane. A point A, 2 to the rightof the centre of the sphere, is 1 in front of the vertical planeand 3 above the ground.… … 4. make angles of 250 and 400 with xy. Determine the tracesof a plane which shall touch the cylinder and have an inclina-tion of 65.° Draw the horizontal traces of all the planes whichsatisfy the given conditions. What are the least and greatestpossible inclinations of the planes which touch this…
