Answer:
m<1 = 145
Step-by-step explanation:
I'm going to name the unkown angle y for clarification
<1 will be x
y + 115 + 30 = 180
y + 145 = 180
y = 35
x + y = 180
x + 35 = 180
x = 145
M angle 1 = 145
The measurement of angle one is a combination of all the angles present in the triangle. This means that 115+30 is equal to angle 1
