Answer:
∠A=30°
Step-by-step explanation:
We know that the angle to the left of x+34 is 55° since 180-115=55.
Then, the angle inside the triangle above that angle is also 99+x. to solve for x, we can set up the equation 180°=2x+34+99+55.
Now, we can simplify:
180°=188+2x
2x=-8
x=-4
Now, we plug this into x+34 to get 30°, which is our answer.
Hope this helps!
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