To complete: the given statement with the word always, sometimes or never.
Answer
sometimes
Explanation of Solution
Given:
The statement:
Two lines skew to a third line are __________ skew to each other.
Skew lines are those lines which are non-coplanar, so they neither intersect each other nor are parallel to each other.
Even if the two lines are skew to a third line, those two lines can intersect or be parallel or skew to each other.
So, it can be said that,
Two lines skew to a third line are sometimes skew to each other.
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