Arrow heads on lines usually signifies parallel lines
A square has 2 pairs of opposite parallel lines.
There cannot be parallel lines in any [plane] triangles.
there are 2 sets of parallel lines in a square
A diamond has two pairs of parallel lines.
This depends on how the double arrow is drawn. Most of the lines if not all will be parallel.
2. actually, none, the lines are intersecting
To indicate that a pair of lines are parallel you mark them both with an arrow. If there is another pair of parallel lines on the same shape you mark those with a double arrow.
Arrow heads on lines usually signifies parallel lines
A triangle can have no parallel lines.
it has too parallel lines!
A pentagon has no 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.