Lange, David C. (David Christoph) · New York, John Wiley & sons, inc.; [etc., etc.] · leaf 41
s the required angle, and can be seen in its true sizeIby revolving the plane containing it, about its trace, intojpne of the Coordinates. (Art. 24.) INTERSECTIONS OF SOLIDS WITH PLANES 36. A solid is a magnitude that has length, breadth, and|thickness, as a Cylinder, Cone, or Sphere. A Cylinder is… … d «<• b Fig. 50
Shades and shadows · Geometry, Descriptive
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