4. Construct a parallelogram ABCD such that AB = 8cm BC = 5.5 cm and A hat BC = 120 deg .

(i) Measure and write down the length of the diagonal BD.

(ii) Construct the perpendicular bisector of BD such that it cuts AB and CD. Measure and write down the length of ST, such that S and T are the points where the perpendicular bisector of BD cuts AB and CD respectively.