Ames, William L. (William Lewis), 1855-, Wischmeyer, Carl · New York, McGraw-Hill book company, inc.; [etc., etc.] · leaf 67
g. 107). 220. The base abc of a regular triangular pyramid is in V and of2 in. side, the side db being inclined at 15° to X. Show projections ofthe vertex d when the face abd is inclined at 3.0° to H. 221. A shaft A is 5 ft. above and a shaft B is 5 ft. below a floor. 56 DESCRIPTIVE GEOMETRY The… … Ji Xl 11 rf ii fc* tin y-icT id II Fig. 109. wall, by a belt 2 ft. wide. Show where the wall and floor are to becut for the belt. Scale, J4 in. =1 ft. 0 in. 222. Find the line of intersection of plane S with the plane abc(Fig. 108). Do not use the traces of the containing plane.
Geometry, Descriptive
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