Brief synopsis of the course of lectures in descriptive geometry; as arranged for the first year Faculty of Applied Science and Engineering, University of Toronto. [By] J. Roy Cockburn (1922)
Cockburn, J. Roy · [Toronto] University of Toronto Engineering Society · leaf 24
ob. XIII Find the point Y where line AB intersects plane LMN. Prob. X The line joining the points X and Y being in a plane whichis perpendicular to line AB must, therefore, be perpendicularto AB. The length of the line XF is the required distance. Thismay be found by Problem III. Problem XVII To… … If a line be drawn from a point on the given line perpendicularto the given plane, the angle which it makes with the given lineis the complement of the required angle. Let LMN be the given plane and ABhe the given straight line. Through the point A, draw the line AC perpendicular to theplane LMN.…
Geometry, Descriptive
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
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