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⭐
Answer from: Quest
where are the images of the functions i can only see the question you typed.
step-by-step explanation:
Answer from: Quest
2
step-by-step explanation:
Answer from: Quest
b
step-by-step explanation:
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