Question

Please help me i have no idea ​

Answer 1

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

Answer 2

AOB: 55
BOC: 77
COD: 115
AOD: 360-(115+55+77)=360-247=113