Answer:
4. 31
5. 60
6. 113
7. 36
Explanation:
4. 180 - (59+90)
5. 180 - (65+55)
6. 180 - (39+28)
7. 180 - (36+108)
31 degrees (the first one)
90 degree angle,
90-59=31
1.6m questions
2.0m answers