Higbee, F. G · New York, John Wiley & Sons · leaf 81
oject a Hne upon any plane: 1. When the line is parallel to the G. L. 2. When the plane is parallel to the G. L. 3. When the plan and elevation of the given line are parallel to the corresponding traces of the given plane. 63. Proposition 12. Given the plan and elevation of a lineand of a point, to… … \ Fig. s6. them they will be shown in this revolved position in their truerelation. If now from the revolved position of the given pointa perpendicular be drawn to the revolved position of the line, PROBLEMS ON POINTS, LINES, AND PLANES 71 this perpendicular will be the measure of the shortest…
Geometry, Descriptive
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
