Two parallel lines, or two intersecting lines, lie in a unique plane, so skew lines are lines that do not meet and do not lie in a common plane.
12.
For example, a parallel . " This is true if the ambient space is two-dimensional, but false if the ambient space is three-dimensional, because in the latter case the lines could be skew lines, rather than parallel.
13.
Horley ( 2011 ) makes a case that 12 was the last line : That the text starts at line 11, wraps around ( in descending order ) to 13, and that 12 was fit into the gap between the slightly skew lines 11 and 13.
14.
This solution appears only elsewhere in the ENGINEERING DESIGN GRAPHICS JOURNAL . It indicates that the directions of viewing ( aiming at ? ) two skew lines ( missiles ? ) so that they present a specified geometry is conical . talk ) 19 : 37, 22 May 2014 ( UTC)
15.
This solution appears only elsewhere in the ENGINEERING DESIGN GRAPHICS JOURNAL . It indicates that the directions of viewing ( aiming at ? ) two skew lines ( missiles ? ) so that they present a specified geometry is conical . talk ) 19 : 39, 22 May 2014 ( UTC)
16.
This solution appears only elsewhere in the ENGINEERING DESIGN GRAPHICS JOURNAL . It indicates that the directions of viewing ( aiming at ? ) two skew lines ( missiles ? ) so that they present a specified geometry is conical . talk ) 19 : 40, 22 May 2014 ( UTC)
17.
Any two skew lines of these 27 belong to a unique Schl�fli double six Cartesian product of complete graphs " K " 6 \ square " K " 2 in such a way that " u " and " v " belong to different " K " 6 subgraphs of the product.
