If a line l is perpendicular bisector of line m then
l is perpendicular to m at the mid-point of m
l divides m in three equal parts
l is parallel to m
l and m are not perpendicular to each other
l is perpendicular to m at the mid-point of m.
Ravi drew two lines L and M on a sheet of paper and a third line N to intersect these two lines. He observed that the angles formed by the intersection of the lines L and N were equal to the corresponding angles formed between M and N. What can be said about the lines?