Describe the locus for questions 1 to 13 given below:
The locus of a point in space, which is always at a distance of 4 cm from a fixed point.
the locus of points inside a circle and equidistant from two fixed points on the circumference of the circle.
The locus of a point P, so that:
AB2=AP2+BP2
where A and B are two fixed points.
The locus of the centres of all circles passing through two fixed points.
The locus of a runner running around a circular track and always keeping a distance of 1.5 m from the inner edge.
The locus of a point in rhombus ABCD, so that it is equidistant from
(i) AB and BC; (ii) B and D.