Question

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

Answer 1

1. Draw a line segment AB and take a point M on it.
2. Now taking point M as center and appropriate radius, draw two arcs on line segment AB and name them C and D.
3. Now draw two arcs taking points C and D as center and radius greater than CM. Name it E.
4. Now join point E to point M. EM is perpendicular to line segment A