Draw an angle of measure 147° and construct its bisector.

Step I: Draw ∠AOB = 147° with the help of a protractor.

Step II: With centres O and a radius of proper length, draw an arc that meets OB and AO at Q and P respectively.
Step III: With centres P and Q and a radius more than half of the length of arc QP, draw two arcs that meet each other at R.
Step IV: Join O and R.
Therefore, RO is the bisector of ∠AOB.