Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction (1915)
Armstrong, Henry F. (Henry Fry), 1868- · New York, J. Wiley & sons, inc.; [etc., etc.] · leaf 25
given, represent a line perpendicular to the plane byarranging its elevation perpendicular to the V.T. and its plan perpendicular to 16 DESCRIPTIVE GEOMETRY the H.T., and find the inclinations of this line by the method shown in Fig. 4,then subtract these inclinations from 90° in each case, and the… … Fig. it. The angle a° is the complement of the angle the fine AB makes with the H.P.Therefore a° is the inclination of the given plane RST to the H.P.; and, for similarreasons, the angle 0° is the inclination of the plane RST to the V.P EXERCISE VI. Find the inclinations to the planes of…
Geometry, Descriptive
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