Draw any line segment AB. Mark any point M on it. Through M, draw a perpendicular to . (Use ruler and compasses)

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Steps of Construction-

1. Draw a line segment AB. Mark a point M on it.

2. With M as centre and a convenient radius, draw an arc intersecting the line AB at two points C and D

3. With C and D as centres and a radius greater than MC, draw two arcs, which cut each other at P.

4. Join PM. Then PM is perpendicular to AB through the point M.