At least one pair, or one pair?
If it is one pair, then it depends if the shape is regular or irregular.
PARROLELOGRAM
A trapezium (has only one pair of unequal parallel lines).
If you mean one pair of parallel lines, then you're talking about a trapezoid.
TRAPEZOID
A quadrilateral with one pair of parallel lines would be a trapezoid. : P
trapezoid
A shape with no right angles and one pair of parallel lines would be called a trapezoid in the USA, and a trapezium in Britain.
No, one pair.
trapezoid
A trapezium (has only one pair of unequal parallel lines).
A regular pentagon has no parallel lines, but you can create an irregular pentagon with one pair of parallel lines if you make a traditional 'house' shape with parallel 'walls'.
for a shape to be parellel two lines have to never touch if they were extended on forever. a shape with one pair of parellel lines is a trapezoid.
retangle
A regular pentagon has no parallel lines, but you can create an irregular pentagon with one pair of parallel lines if you make a traditional 'house' shape with parallel 'walls'.
A trapezoid
If you mean one pair of parallel lines, then you're talking about a trapezoid.
A right trapezium.
Not sure about angels and parrellel, but a trapezium has four angles and only one pair of parallel lines.