Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 21
ce A 0—the distance at which the other line is to be drawn. On A,as a centre, describe an arc, and on B, as a centre, a similar arc; draw theline C D just touching these two arcs, which will be the parallel line re-quired. 4 CONSTRUCTION OF GEOMETRICAL PROBLEMS. To draw a line parallel to a given…
Mechanical drawing
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