HELP ME PLZ
Find the missing angle measures.
60°
1
50
50
What is mZ12

Answer:
it s 100
Step-by-step explanation:
50+50 = 100
180 -100= 80 third angle of isoceles triangle.
vertical angles are same so linear angle of 1 is 80.
Now we subtract 80 from 180 to get angle 1 and answer is 100