Answer with Step-by-step explanation:
The angle in the picture isnt clear so i am gonna assume what it looks like to me
1
a=54(Vertically opposite angles)
a=b(Alternate interior angles)
b=c(Vertically opposite angles)
2
d=65(Corresponding angles)
d=x(Vertically opposite angles)
x=b(Corresponding angles)
b+a=180(Co-interior angles)
a=115
3.
a=54(Alternate interior angles)
a+x+x=180[Angles in a straight line]
x=63
a+x=b(Corresponding angles)
b=117