a trapizoid
A quadrilateral with only one pair of parallel lines is called a trapezoid.
Yes, a trapezoid is a quadrilateral with only one pair of parallel sides.
I would be seriously concerned if a quadrilateral had more than two pairs of opposite sides parallel! A quadrilateral with two pairs of opposite sides parallel is a parallelogram.
It is a trapezium.
Two sides of a quadrilateral can be parallel.
There are actually I think two with only two parallel sides. A square and a rectangle
A trapezoid.
Trapazoid
Only one quadrilateral has only two parallel sides: the trapezium.
The quadrilateral with two pairs of parallel sides
A trapezium is a quadrilateral with two parallel lines.