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 478
sloping edge. The plan may now becompleted from considerations of symmetry From the corners a, a, a, a draw the plans ab of theother four similarly-situated edges AB. For the top face,draw the regular pentagon ddddd, with sides parallel to aaaaaand circumscribing: the same circle. Draw the five… … The distances of the points B, C, and D from the lower face A arereadily found since we have the plans, and we know the true lengths ofthe lines AR, BC, and CD : we can thus draw an elevation on anyvertical plane. If we draw an elevation on a plane parallel to a diagonal AD of thesolid (a diagonal…