Two parallel lines are _____ coplanar.neversometimesalwaysTwo lines that lie in parallel planes are _____ parallel.sometimesalwaysnever Please explain the answers, I want to understand this better.

Answer:1. always2. sometimesStep-by-step explanation:Two lines are coplanar if they lie in the same plane or in parallel planes. There is  ALWAYS a plane which contains two parallel lines (see first attached image for details). Two lines that lie in parallel planes are sometimes parallel. For example, see at second image. Planes [tex]\alpha[/tex] and [tex]\beta[/tex] are parallel. Consider pair of lines [tex]a[/tex] and [tex]a_1[/tex] - they are parallel, but if you consider the pair of lines [tex]a[/tex] and [tex]b_1[/tex], you can see they are not parallel.