pls answer i’m begging

Answer:
75
Step-by-step explanation:
Angles in a triangle add up to equal 180
That being said we can find the missing angle by subtracting the measures of the given angles from 180
Thus missing angle = 180 - 34 - 71
180 - 34 - 71 = 75
Which means that the missing angle = 75
Answer:
? = 180 - (angle 1 + angle 2)
? = 180 - (71 + 34)
? = 180 - 105
? = 75°
=> To check is the answer is right, add all 3 angles together and their sum should be 180°
Hope this helps!