<B = 70 degrees
Step-by-step explanation:
interior angles sum up to 180 degrees
30 + 80 + <B = 180
110 + B = 180
-110 Β Β Β Β Β -110
B = 70
can you add an image ?
step-by-step explanation:
answers available in this download
(pearson%2c%25202012)%2520bbs.pdf& usg=aovvaw1obmtxnfghfgxhx0urh_je