0 because the letter t does not have anything to be parallel with but it is intersecting.
One
A square has 2 pairs of opposite parallel lines.
only 1
There cannot be parallel lines in any [plane] triangles.
A triangular prism has 9 parallel lines
There are 2 horizontal parallel lines in the letter Z
2
One
A triangle can have no parallel lines.
2
A pentagon has no parallel lines.
it has too parallel lines!
A cone does not have any parallel lines
how many sets of parallel lines are in a triangle
A square has 2 pairs of opposite parallel lines.
A cube has exactly 6 parallel lines.
A cube has exactly 6 parallel lines.