The opposite angles are equal so m4=m1 and m2=m3. If you know m4=m1, m1= 138 so m4+m1= 276. That means m2 and m3 are equal to 84 in total. Your answer should be 48 for both m2 and m3 cuz they add to 84
Answer: Two adjacent, supplementary angles. Supplementary means that they make up a degree of 180 when put together, and the are right next to each other.