3 sets of four mutually parallel lines.
4
4
4
Yy
Your dad
I don't exactly understand what you are trying to say in this question. However, one thing I can tell you about the slope of parallel lines is that they are equal. Parallel lines must have the same slope.
Two white (or yellow) parallel lines down the center of a roadway signify No Passing allowed.
They are: -skew lines -parallel lines -intersecting lines -straight lines -zigzag lines -dotted lines -solid lines -curved lines -perpendicular lines
Tow parallel lines could be railroad tracks. Each line of the track remains the exact same distance from the other one for the length of the track.
Mercator is the type of projection which has parallel lines of longitude which disappear near the poles. The project in question also presents parallel lines of latitude even though the overall clarity gets distorted around both the North and South Poles.
4
I'm pretty sure it is 12 pairs of parallel lines.
A cuboid has 3 quartets of parallel lines. Each quartet gives rise to six pairs. So, in all there are 18 pairs of parallel lines.
2
3 pairs
3 pairs
24
it has 2
it has 2
The answer will depend on whether you mean parallel edges or parallel faces.
3
A triangle can have no parallel lines.