who the f deleated my quesion i was just saying wats your name noting eles why becuse i was making friends

Dang, the opps out to get you bruh

Step-by-step explanation:

yeah, that has happened to me. lol

Step-by-step explanation:

we can't do anything about it since it is against the sites guidlines.

have a good day.

:)

< 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⭐