Kenison, Ervin, Bradley, Harry Cyrus, 1871-1936 · New York : The Macmillan Company · leaf 73
uch a plane of projection should occasion arise. CHAPTER VIII REVOLUTION OF A POINT —TRUE LENGTH OF ASTRAIGHT LINE — APPLICATIONS 74. Revolution of a Point about a Straight Line. A point maybe revolved about any straight line as an axis through a com-plete revolution or through a portion of a… … bv a o c I I M I I I I I I I / j I X i bl i Ic*1 Fig. 96. center lies on the axis. In the case of a portion of a revolu-tion, the path will be an arc of such a circle. We shall proceed to discuss certain simple cases in which theaxis of revolution lies in a particular position. 75. Axes of…
Geometry, Descriptive
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