Please help I have been trying to solve this

asked Dec 11, 2019 180k views

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The intersecting chord theorem says

$AY \cdot BY = CY \cdot DY$

$AY = ( CY \cdot DY)/(BY) = (6 \cdot 12)/(9) = 8$

AB = AY + BY = 8 + 9 = 17

Answer: 17

EinSelbst answered Dec 17, 2019

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