Lange, David C. (David Christoph) · New York : John Wiley & Sons ; London : Chapman & Hall · leaf 39
e is the required angle, and can be seen in its true sizeby revolving the plane containing it, about its trace, intoone of the Coordinates. (Art. 24.) INTERSECTIONS OF SOLIDS WITH PLANES 36. A solid is a magnitude that has length, breadth, andthickness, as a Cylinder, Cone, or Sphere. A Cylinder is… … Fig. 50 d a^c 6° d^ b Fig. 51 abed is a right section ab is an element
Shades and shadows · Geometry, Descriptive
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