Question

please help me........​

Answer 1

it is 70 ⁰

pls mark it as brainlest answer

3 thanks =inbox

Answer 2

Answer:

we know that radius is perpendicular to the tangent so angle oac and once are equal and are each 90 degree so since it is quadrilateral 90+90+140+acb=360

angle acb is 360-320=40