Ames, William L. (William Lewis), 1855-, Wischmeyer, Carl · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 58
angle in H, sides 1^ in., 1 in. and 2 in., with the 2 in. sideparallel to X, is the plan of a triangle situated in a plane which isinclined at 60° with H and 45° with V. Show the elevation of thetriangle. LINE CONTAINED IN PLANE 47 180. Find the angle K of the plane abc (Fig. 79). 181. 5 and 5 are… … Fig. 80. 183. Find the traces of the four planes of the tetrahedron of Fig. 49. 184. Line A lies in plane S (Fig. 81). Show the projections of asecond line of the plane, intersecting A at a true angle of 45°
Geometry, Descriptive
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