Lange, David C. (David Christoph) · New York, John Wiley & sons, inc.; [etc., etc.] · leaf 39
is the required angle which can beseen in its true size by revolving itand the plane O containing it aboutits traces into either coordinate. … INTERSECTIONS OF SOLIDS WITH PLANES 27 Let A and B be two straight lines not in the same plane.(Fig. 48.) The shortest distance between two points not in thesame plane is the perpendicular distance between them,and only one perpendicular can be drawn terminating inthese two lines. Through one of…
Shades and shadows · Geometry, Descriptive
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
