A 82-inch candle burns down in 11 hours. How far has it burned after 11 hours? Use the dropdown menu to state your answer as a decimal, mixed number, or
improper fraction.
Answer type: Whole number/Decimal
in.
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Anger.

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⭐