Please help me with this. Find the measurement of angle 4
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Answer:
80
Step-by-step explanation:
The rule for triangles is that their angles must add up to 180. 30+50=80 and 180-80=100 so the angle next to 4 is 100. Since they are on a straight line the angle is 180 and 180-100 is 80
brainliest pls hardstuck ambitious.