parallel is easy. are they the same distance apart at two different benchmarks? if not then they may be perpendicular. perpendicular means they intersect at a 90 degrees. If it is any other angle and they are different distances apart at your two benchmarks then they are neither of the two choices
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Parallel
Two lines are parallel if and only if they have the same slope. Two lines are perpendicular if the product of their slopes is -1. If neither of these conditions are met, the lines are nether parallel, or perpendicular.
In two dimensions: They are parallel if their gradients are the same. They are perpendicular if the product of their gradients is -1. Otherwise they are neither. The nature of the question suggests that you have not yet studied lines in 3 or more dimensions.
Perpendicular is when two lines cross... Parallel is when two lines never meet.... _____________ _____________ = PARALLEL LINES If they cross they are perpendicular, if they don't, they are parallel.
Parallel. Latitude and longitude are perpendicular.