0 degrees 180 degrees
Lines that cross each other at 90 degrees are perpendicular lines.
Well, since one straight line has 180 degrees, two would equal 360 degrees.
When two perpendicular lines cross you get four equal angles of 90 degrees.
Perpendicular lines intersect each other at 90 degrees
There are only two lines of longitude running through the large country of Mexico. These lines are 100 degrees West and 110 degrees West.
Zero. A null angle is formed by two straight lines that coincide.
Orthogonal lines are two lines which are perpendicular, i.e. 90 degrees, to each other.
Zero degrees latitude is the "Equator" and zero degrees Longitude is the "Prime Meridian".
Two lines are perpendicular if they meet each other at 90 degrees which is a right angle.
They are 60 west degrees and the 70 west degrees lines of longitude.