50 points
take it and leave :)​

ok bro thxyjfgbfsdfgfgf

Step-by-step explanation:

                     If you say to someone 'take it or leave it,' you are telling them that they can accept something or not accept it, but that you are not prepared to discuss any other alternatives.

< coa = 150 ( given)

as ba and bc are tangents

so oc and oa is perpendicular to cb and ab respectively because in circle normal passes through centre

so in quadrilateral oabc

< coa + < oab + < ocb + < abc = 360

150 +90+90 + < abc = 360

330 + < abc = 360

< abc = 360 -330 = 30

so < abc = 30

⭐dhruv⭐