Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 116
hrough the given point draw an auxiliary linewhich shall be perpendicular to (but does not necessarily inter-sect) the given line. Through this line pass the required planeperpendicular to the given line. Construction (Fig. 161). Let c be the given point and A thegiven line. Through c draw the… … b- \na CLh a. N %-1 S^ >
Geometry, Descriptive
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