Angle bisector locus:The locus of points which are equidistant from two given intersecting straight lines is the pair of perpendicular lines which bisect the angles between the given lines. Conversely ,a point which lies on a bisector of given angle is equidistant from the lines including that angle. Line PB bisect angle ABC into two equal parts.Example:Construct triangle PQR such that PQ= 7 cm, QR = 5 cm and angle PQR = 300. Construct the locus L of points equidistant from RP and RQ.
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