In a fruit survey, 300 children choose their favorite fruit out of apples, bananas and watermelon. 38% chose apples, 28% chose bananas. How many children chose watermelon?​

< 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⭐

1.true 2.false? ? i think. .

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