Step-by-step explanation:
ABC+DAB=180
DAB=180-115
DAB= 65
m<3+m<4=65
m<3=65-m<4
You have been given 4 degrees there, but it has not fallen. The answer is either A or B. Subtracting the conditional degree from 65. Find 3.
Answer:
...
m<4=30
180-115=65
65-30= 35 , so m<3= 35
180- 150 = 30
so m<1= 30
