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 444
iv«? € e ■ ! ,r . !:! 9, \ ~^- 341 … 43o PRACTICAL SOLID GEOMETRY chap. 342. Problem.—The plans of a line EF and of a squarepyramid VABCD are given, the points v, e, f beingindexed, and the base ABCD resting on the ground.Determine the plan of the shadow cast by the line EF onthe ground and on the pyramid, rs being the plan of aray,…