![Advanced Geometry - Mountain Brook Schools](http://s1.studyres.com/store/data/003751378_1-c313bcee51ce6ea0c0851d4b7d36e171-300x300.png)
Angles
... a quadrangle that has only one pair of parallel lines it is not a parallelogram the 4 sides can all be of a different length ...
... a quadrangle that has only one pair of parallel lines it is not a parallelogram the 4 sides can all be of a different length ...