Answer:
The third one x+49+28=180
Explanation:
We can say that the angle between the 29° angle and the 49° angle is equal to x, since they are vertically opposite angles.
The sum of 28+49+x is equal to a supplement angle which is a straight line essentially
We can then say x+28+49=180
:)
If you want to calculate x,
x=180-28-49
x=103