1 pair of parallel line
Two pairs.
Normally none but if it's an isosceles trapezoid it has one
2 pairs
2 pairs, same as any other parallelogram
1 pair of parallel line
None
One pair.
Two pairs.
Normally none but if it's an isosceles trapezoid it has one
Two pairs.
2 pairs
2 pairs
2 pairs, same as any other parallelogram
none.
parallel lines
The NEVER cross each other