JAMB - Mathematics (2005 - No. 24)
Two lines PQ and ST intersect at 75°. The locus of points equidistant from PQ and ST lies on the
perpendicular bisector of PQ
perpendicular bisector of ST
bisector of the angles between lines PQ and ST
bisector of the angles between lines PT and QS
Paliwanag
The locus of points equidistant from lines PQ and ST lies on the angle bisector of the angles formed by the intersection of those lines.