Guven O centre of the circle, find x

I just want to check my answers. my answer is x= 24.5⁰
If it is wrong is tell me in the comments.
and if you know the right answer, please answer the question with full explanations.
thanks.

Guven O centre of the circle find xI just want to check my answers my answer is x 245 If it is wrong is tell me in the commentsand if you know the right answer class=