Beman, Wooster Woodruff, 1850-1922, Smith, David Eugene, 1860-1944 · Boston, Ginn & company · leaf 282
e shortest line-segment between two lines not in the same i>lnne. For if QfP II QP, then QP = QP < QfR. Prop. XI, 1 355. Definition. The length of the common perpendicular from one line to another is called the distance between thoselines. K Sbcs. 350-358.] PENCIL OF PLANES. 265 3. PENCIL OF…
Geometry
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