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Answer 1 · 2018-02-15T04:07:58

See the explanation

4) The line parallel to NP is MQ.

Parallel lines are those which never intersect when extended.

Thus, you can see in the figure that when NP and MQ are extended, they will never meet.

5) The lines skew to NP are RN and RP.

Skew lines are those which are neither parallel nor at right angle to the given side.

They are just inclined at a certain angle.

In the figure you can see that RN and RP are inclined to NP to a fixed angle.