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 460
oz three equal lengthsoa, ob, oc. This length is at present undefined. Finally, to complete the isometric projection of the cube,we make use of the principle that parallel lines have parallelprojections. Thus to complete the face of which oa, obare sides, draw af and //parallel respectively to ob… … W e must now find the length of the edge of the cube,of which the figure just obtained is the isometric projection.The corners A, B, C of the cube are evidently equi-distant from the plane of projection, for they are the ends oflines which all start from a common point O, and are equaland equally…
