Two.
2 pairs of two lines.
A trapezoid has a pair of opposite parallel lines of different lengths A square has 2 pairs of opposite parallel lines of equal lengths A triangle has no parallel lines
2 pairs of parallel lines
1 pair of parallel line
A rhombus has 2 pairs of parallel lines.
It has a pair of opposite parallel lines of different lengths
A trapezoid has one pair of parallel sides. They are opposite parallel lines of different lengths.
2, just like any other rectangle.
it my be a trapizoid, square, parallelogram, rhombus, or a rectangle.
2
Zero
1 pair of parallel lines