Descriptive geometry for students in engineering science and architecture; a carefully graded course of instruction (1915)
Armstrong, Henry F. (Henry Fry), 1868- · New York, J. Wiley & sons, inc.; [etc., etc.] · leaf 69
It will now be seen, that, by supposing the rabattement of the angle betweentwo planes, and working conversely to the method in Fig. 6i, it will be possibleto find the traces of a second plane at a given angle to a first one, whose tracesmay be given, and intersecting it in a line of given… … Fig. 63. For illustration, let the plane RST, Fig. 63, be given, and let it be required jto find the traces of another which will cut into this one in a line of 30° to the!H.P., and make a dihedral angle of, say, 70° with this given plane. DIHEDRAL ANGLES-OBLIQUE INTERSECTING PLANES 61 From any…
Geometry, Descriptive
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