Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 169
ion. First Analysis. Lines which intersect, or are parallel, arenecessarily in a plane. Hence, by producing the sides of thegiven complete projection until they intersect, or by drawingin this projection lines which are parallel to some of its sides orwhich intersect the sides or each other,…
Geometry, Descriptive
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