Joined: 25 Sep 2007
|Posted: Fri Jan 30, 2009 2:00 pm Post subject: Difference between perpendicular and orthogonal
|When two lines are at right angles to each other, we call it perpendicular.
When two surfaces are at right angles to each other, we call it orthogonal.
So for lines - perpendicular
for surfaces - orthogonal.
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