Perpendicular straight lines
From Encyclopedia of Mathematics
Straight lines forming a right angle with each other (such straight lines need not intersect in space). A straight line and a plane
are said to be mutually perpendicular if
is perpendicular to any straight line lying in
. See Orthogonality for a generalization of the concept of perpendicularity.
How to Cite This Entry:
Perpendicular straight lines. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Perpendicular_straight_lines&oldid=31464
Perpendicular straight lines. Encyclopedia of Mathematics. URL: http://encyclopediaofmath.org/index.php?title=Perpendicular_straight_lines&oldid=31464