Steps of Construction : \\\\(1.\\\\) With \\\\(P\\\\) and \\\\(Q\\\\) as centers, draw arcs on both sides of \\\\(PQ\\\\) with equal radii. The radius should be more than half the length of \\\\(PQ\\\\). \\\\(2.\\\\) Let these arcs cut each other at points \\\\(R\\\\) and \\\\(RS\\\\) \\\\(3.\\\\) Join \\\\(RS\\\\) which cuts \\\\(PQ\\\\) at \\\\(D\\\\). Then \\\\(RS = PQ\\\\). Also \\\\(\\angle{POR} = {90}^{\\circ}\\\\).Hence, the line segment \\\\(RS\\\\) is the perpendicular bisector of \\\\(PQ\\\\) as it bisects \\\\(PQ\\\\) at \\\\(P\\\\) and is also perpendicular to \\\\(PQ\\\\). On measuring the lengths of \\\\(PR = 4\\\\)cm, \\\\(QR = 4\\\\) cm Since \\\\(PR = QR\\\\), both are \\\\(4\\\\)cm each \\\\(\ herefore PR = QR\\\\).