Otherwise nobody would know what was meant by parallel lines!
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You can't... A rectangle is defined by 2 sets of parallel lines, ans a parallelogram has 1+ sets of parallel lines
A circle does not have a set of parallel lines in the traditional sense, as parallel lines are defined as lines that never intersect and remain equidistant from each other. However, you can draw lines that are tangent to a circle at various points, and these tangent lines can be parallel if they are at the same distance from the center of the circle. But in the context of the circle itself, it does not contain parallel lines.
Since a quadrilateral is a defined as any object with two sets of two parallel lines that form four 90 degree right angles. It would have 2 sets of 2 parallel lines.
They are parallel lines
the answer is parallel lines