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I, the top and bottoms lines are parallel, but the vertical line is perpendicular to the top and bottom lines.
Perpendicular: No Parallel: Yes, two pairs.
Railroad tracks or the number 11 are parallel lines. A cross or a small t are perpendicular lines. Also the two ll's in the middle of parallel are parallel lines.
No, oblique lines are neither parallel nor perpendicular
Railway lines are parallel