Question

which is the correct label of the parallel lines?

Explanation:

• In geometry, the symbol “\(\parallel\)” is used to denote parallel lines.
• Here, lines \(a\) and \(b\) are the ones that are parallel.
• The notation \(\overrightarrow{AA}\perp\overrightarrow{CB}\) uses the “\(\perp\)” symbol which represents perpendicularity, not parallelism.
• The notation \(\overrightarrow{A}\parallel\overrightarrow{B}\) is an incorrect way of labeling the parallel lines as \(A\) and \(B\) are points on line \(a\), not the lines themselves.

Answer:

\(a\parallel b\)