That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles. The geometry, by T. S. Davies. Conic sections, by Stephen Fenwick - Seite 19 von Royal Military Academy, Woolwich - 1853 Vollansicht - Über dieses Buch
