Question
Draw a parallelogram $ABCD$, with $AB = 6 \ cm, AD = 4.8 \ cm$ and $\angle DAB = 45^\circ $. Draw the perpendicular bisector of side $AD$ and let it meet $AD$ at point $P$. Also, draw the diagonals $AC$ and $BD$; and let them intersect at point $O$. Join $O$ and $P$. Measure $OP.$
