Answer:
Explanation:
first of all , find the value of x :
Remember that circles have a 360 º angle in total so what you have to do is add the angles that you have and subtract them by the total that is 360 .
50º+77º+115º+x =360º
242º+x=360º
x=118º
now that you have the value of x , the only thing that you have to do is to look the angle that they asking you to put .
i)
∠AOB =50º
ii)
∠BOC =77º
iii)
∠COD=115
iv)
∠AOD=118º