Steps of construction :
(i) Draw a line segment AB = 5.8 cm.
(ii) With centres A and B radius more than half of AB, draw arcs intersecting each other at E and F.
(iii) Join EF which is the required perpendicular bisector of AB.
Draw a line segment AB of length 5.8 cm. Draw the perpendicular bisector of this line segment.
Draw a line segment AB of length 8 cm. At each end of this line segment, draw a line perpendicular to AB. Are these two lines parallel?