Urgent! If you want to help me, go to my profile and answer my last 2 questions!! Again, this is urgent and I really need help :( If you can help, I will give brainliest. Thanks :)

okay i will check it to see

Step-by-step explanation:

I answered one of them for you.

answer: what equations are there

step-by-step explanation:

< 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⭐