Answer:
Its a 135 degree angle
Explanation:
You just take the angle BOC which is a 90 degree angle and divide it by 2. This is then a 45 degree angle. So now you know that angle AOB is also a 90 degree angle and you need the measurement of angle AOK so you then just simply add 90+45 and you get 135, so you now know that the measurement of angle AOK is 135 degrees.