Question

what does the following notation describe?
overline{ab} || overline{dc}
two congruent segments
two parallel lines
two parallel segments

Explanation:

The notation \(\overline{AB}\parallel\overline{DC}\) uses the segment symbol (\(\overline{}\)) and the parallel symbol (\(\parallel\)). The segment symbol indicates that \(AB\) and \(DC\) are line segments, and the parallel symbol indicates that they are parallel. So, it describes two parallel segments.

Answer:

two parallel segments