# Loci

**The locus of points from a fixed point**

In the example below, the locus is the circle, the centre is P and the radius between point P and the circle is 5 cm.

**The locus of points from a line segment**

In the example below, the locus is the pair of parallel lines on both sides of AB.

**The locus of points from two fixed points**

In the example below, the locus is the perpendicular bisector of the line joining the two points.

**The locus of points from two lines**

In the image below, the locus is the angle bisector of the angle where the two lines intersect.

**The locus of points from a given shape**

In the example below, the locus are the sections rounded at the corners.