9. Isosceles trapezium

In an isosceles trapezium \(ABCD\), \(AD \parallel BC\) and \(AB = DC\). If \(\angle B = 79^{\circ}\), find all the remaining angles.
 
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\(\angle A =\) \(^{\circ}\)
 
\(\angle C =\) \(^{\circ}\)
 
\(\angle D =\) \(^{\circ}\)
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