Question

please answer with proper solution if it the best answer I will mark it as brainly answer ​

Answer 1

Answer: 55

Step-by-step explanation:

Answer 2

Answer:

it is a theorem that two cords touches the centre of the circle and join each other so the angle made by these cords will be half of the radius joining from the centre of the circle , so the angle AOB is 70° . and OA= OB (radius)

so angle

2OAB + 70 = 180

OAB = 55°