Draw the perpendicular bisector on XY whose length 10.3 cm .a)Take any

This question was asked in Ex 14.5, 1

Draw the perpendicular bisector on XY whose length 10.3 cm .
a)Take any point p on the bisector drawn .examine whether px=py.
b) if M is the midpoint of XY, what can you say about the length MX and XY