Question

please answer how to solve this question?
step by step . ​

Answer 1

Step-by-step explanation:

Solution

1. angle AOB = 118 degree

Then, lets angle ABO be x degree

=AOB +ABO = 180 degree = 118+x=180

= x = 180 - 118 = 62 degree

2. angle ADO =AOB = 118 degree

3. Angle OCB = 62 degree