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 67
ch names to all the various lines and points whi!<^the solution is in progress. 58 DESCRIPTIVE GEOMETRY (Notice that the third planes H.T., marked 3, and arranged at any convenientplace perpendicular to the plan vH of the intersection line, may need to be producedbeyond XY in order to meet the… … By experiment with an open book, it will be realized that any dihedral angle,contained by the covers of the book, may be divided by arranging a leaf or leavesof the book, so that from one cover to a leaf is a dihedral angle, and from thatleaf to another, separated from it, or to the other cover,…
Geometry, Descriptive
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