Please help me i have no idea

Step-by-step 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

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