Find mAB mAB SolutionAnswer to the question is as below Th

Solution

Answer to the question is as below:

The angle made at B is 120
Now draw 2 lines from center O to A and B each
Let D be point on line B to the right of B.
Angle ABO = Angle B - OBD
= 120-90
=30

Since AO = OB = radius, therefore, OAB = 30
So, Angle O = 180 - 30-30 = 120

mAB = 120