Answer: Try 55
Step-by-step explanation:
Triangle equal up to 180
Therefore, 80+45 = 125
125 + 55 = 180
X = 55
Answer:
55
This is because the measures of the interior angle of a triangle add up to 180. (angle 1+angle 2+angle3=180) If you plug this in you get 80+45+x=180. Then you solve by subtracting 80 and 45 from 180 and you should get 55.
