2
2
A triangle cannot have parallel lines.
it has 4 parallel lines
Yes.
parralel lines
Yes.
Yes, parallel lines have the same slope.
there are no parralel line in a rhombus
There are no parallel lines in a triangle !
how many sets of parallel lines are in a triangle
Yes, all vertical lines are parallel, for a given coordinate system.
a scalene triangle has no lines of symmetry