Question

please tell the answer with explanation​

Answer 1

angle aob + angle boc = 90 degree (because oc is perpendicular to ab)

x+2x= 90 degree

3x =90 degree

x =30 degree = angle aob

2x =30 *2 =60 degree =angle boc

Answer 2

Answer:

Well, I am Indian but how should we talk personally? I have no idea about Korean messaging and all do you have any idea how?