To construct the square ABCD given diagonal AV=6.2 cm following the given stepts:
(1)Draw AC=6.2 cm
(2)Draw XY, the perpendicular bisector of AC to meet AC at O.
(3)With O as centre and 3.1 cm radius (AC2=6.22=3.1cm) cut XY at B and D.
(4)Join AB,CB,AD and CD.