Lange, David C. (David Christoph) · New York : John Wiley & Sons ; London : Chapman & Hall · leaf 28
mined. (Art. 6.) Case III. To find the intersection of two planes whenboth intersecting planes are parallel to the GL, or whenone of the intersecting planes contains the GL. Let P and 0 be the two planes parallel to the GL. (Figs.36 and 37.) On the Profile Plane the traces of the intersecting… … 18 PKINCIPLES OF DESCRIPTIVE GEOMETRY
Shades and shadows · Geometry, Descriptive
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