Answer:
a. Two sides that are not parallel are congruent.
Step-by-step explanation:
The trapezoid will be even on both sides because it is isosceles, so it will have two sides that are congruent but not parallel. None of the other answers would be correct because while the trapezoid will have two lines that are parallel they will not be the same length, it only has the one set of parallel lines, and the angles would not all be even there would be two sets of angles but each set would be different.
