Answer:
AC and BD
Explanation:
You want a pair of congruent segments shown in the given figure.
Congruence
Angles or line segments that are congruent are marked the same way. Usually, an arc is used to mark an angle, and a hash mark is used to mark a segment. When different pairs (or other groups) of items are congruent, the number of arcs or hash marks may be increased to differentiate one congruent set from another.
Here, there are single hash marks in segments AC and BD, signifying these segments are congruent.
A pair of congruent segments is AC and BD.
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Additional comment
The arrow marks on segments AB and CD signify these segments lie in the same direction. That is, they are parallel. The arrow marks by themselves have nothing to do with congruence.
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