Question

In the figure , if angleOAB = 40degree then , angle ACB= ?

Answer 1

OA=OB(RADII OF THE SAME Circle)

Angle OBA=40degree

In Triangle OAB by asp

AngleAOB=180-80=100

We know angle 2ACB=AngleAOB

ACB =100÷2 =50 degree

Answer 2

Answer:

refer to the attachment plz

hope it helps you...