Question

What exactly does skew mean?

I'll draw the diagram in the comments.
They're asking me the following:

Which two line segments are skew?

o Line DE and line GE
oLine EI and line GK
o Line GK and DH
oLine HI and line DF

I looked up what skew means but they are giving me mixed definitions. So, can you help me out please?

Answer 1

Two parallel lines are skew if they are not parallel but are in different planes, which means that they will not intersect, in spite of they are not parallel.