Example 2 Kenny bought a television with a length to height ratio of 16:9. Which of the following can be
used to find, 1, the length of a television with a height of 18 inches?

i will take them

step-by-step explanation:

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what the hell man, i just want the points lol

< 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

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