Help. ​

Look at this one: https://web2.0calc.com/questions/help_3554

It's the exact same question just instead of " 34 " it is a " 52 ."

Can you try to do it on your own first? 

Then compare it with my answer.

vvv answer below vvv

minor arc YA  =  180 - 34  =  128º

m∠YAC = (1/2)(128) = 73º