Lange, David C. (David Christoph) · New York : John Wiley & Sons ; London : Chapman & Hall · leaf 25
ction of two planes inter-secting within the limits of the drawing. Let X and P be the intersecting planes. (Figs. 29 to32.) The intersection of the Horizontal Traces must be apoint common to both planes, and therefore a point commonto their line of intersection. The Vertical Projection ofthis… … POINTS, LINES AND PLANES 15
Shades and shadows · Geometry, Descriptive
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