Answer:
1 = 137
2 = 43
3 = 43
4 = 137
Step-by-step explanation:
for the first line, do (180-137 = 43)
then, 43 would be corresponding angle to 2 - making them equal
2 would be vertically opposite to 3, making them equal
137 and 1 are corresponding- making them equal
4 is vertically opposite to 1 - making them equal
Answer:

Step-by-step explanation:
Since
due to
is an angle bisector, we have the following:

The angles all add up to 180
42 + 42 + x = 180
84 + x = 180
x = 96
x = the third angle