July 19, 2015
GMAT Line (no different from regular lines): A geometrical object that is straight, infinitely long and infinitely thin.
Segment: A line that has endpoints.
Parallel: Two lines or segments that never meet - designated as // - AB // CD
Perpendicular: Two lines or segments the intersect to form a 90° angle. In drawings, this is represented with the drawing: .
Typically, these definitions will not be outright tested. Or, you will not see a question that asks you to define a parall...