P is a fixed point and a point Q moves such that the distance PQ is constant. What is the locus of the path traced out by the point Q?

A point P moves so that its perpendicular distances from two given lines AB and CD are equal. State the locus of point P.

A, B are fixed points. State the locus of P so that ∠APB = 60°.

Draw and describe the locus of points at a distance 2.5 cm from the fixed line.