Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 175
the actual dis-tance from the point to the line, find the true Length of <•</(Prob. 3, §80). 154 DESCRIPTIVE GEOMETRY [XVI, § 143 The above solution suggests a method for solving the generalcase, since any line can be converted into a ^-parallel by as-suming a secondary plane of projection…
Geometry, Descriptive
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