Only one pair is parellel.
1 pair of parallel lines
A trapezoid is a quadrilateral with one pair of sides parallel.
A trapezoid has one pair of parallel sides.
One pair.
1
One pair
One pair.
A trapezoid is a four sided quadrilateral that has only one pair of opposite parallel lines of different lengths.
One pair. And the other pair must be non-parallel.
Just one. And the other pair cannot be parallel.
Normally 1 pair
A trapezoid has one pair of parallel sides. They are opposite parallel lines of different lengths.