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April 22nd, 2015, 10:27 PM   #1
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Help with circle and tangent please let

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April 23rd, 2015, 03:35 AM   #2
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$\displaystyle 3x$
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April 23rd, 2015, 05:27 AM   #3
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I worry about myself. Thank you
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April 23rd, 2015, 05:30 AM   #4
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$\displaystyle \angle{YAO}=90^\circ$

$\displaystyle \angle{CAO}=\frac{180^\circ-6x}{2}$

$\displaystyle \angle{YAC}=\angle{YAO}-\angle{CAO}$
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