Lange, David C. (David Christoph) · New York, John Wiley & sons, inc.; [etc., etc.] · leaf 33
^Yhen the line is parallel to the Profile Plane,necessitating the use of the Profile Plane. (Fig. 40.) Case IV. WTien the plane is defined by two inter-secting lines. (Fig. 41.) 29. To find the shortest distance from a point to a plane.Let P be the given plane and a the given point. (Fig. 42.) The… … POINTS, LINES AND PLANES 21
Shades and shadows · Geometry, Descriptive
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