Question

if AB||DE and DE||GH, then AB||GH
true or false

Answer 1

True. I think

Answer 2

A-----------------B
D-----------------E
these dudes are parallel
D-----------------E
G-----------------H
and these dudes are parallel (i mean literally look at the lines :P)

So we have:
A-----------------B
D-----------------E
G-----------------H

So hopefully from this you can see the answer