Respuesta :

abbywalzz
its 150 because your angles are 180 so you are going to take 180 - 30 and get 150 
dsaketh
we can see that <1 and 30 are supplementary angles because they are on a straight angle, so <1 + 30 degrees = 180

subtract 30 on both sides 

<1 = 150 degress