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B
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E
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In the figure above, angle \(BCD\) measures \(90\) degrees, angle \(ABC\) measures \(120\) degrees, side \(BC\) measures \(y\) meters and side \(DC\) measures \(y\sqrt{3}\) meters. If side \(AD=\) side \(AB\), what is the measure of angle \(ADC?\)
A. \(75\) degrees
B. \(90\) degrees
C. \(105\) degrees
D. \(120\) degrees
E. \(130\) degrees
The OA is B
Source: Veritas Prep
