Dear student,
Please find the steps below
1. Draw AB =6cm
2. At A draw angle QAB=45
3.Cut AD=3cm on AQ
4. From D draw an arc of radius 6cm
5 ,From B draw an arc of radius 3cm which meets first arc at C
6, Join CD and BC
Thus ABCD is the required parallelogram
7,Bisect angle DAB, so that bisector meets CD at P
8, Join PB and measure angle APB
Regards