In given fig.OAPB is a sector of a circle of radius 3.5 with the centre at O and angle AOB=120.find the length of OAPBO. In given fig.OAPB is a sector of a circle of radius 3.5 with the centre at O and angle AOB=120.find the length of OAPBO. OR Share with your friends Share 0 Ankita Agarwal answered this Dear Student , Regards 1 View Full Answer