5. Finding Angles in a Trapezium

In the trapezium ABCD, \(AB \parallel DC\). If \(\angle A = 89^\circ\) and \(\angle B = 91^\circ\), Solve the measures of the remaining angles, \(\angle C\) and \(\angle D\).

 

 \(\angle C =\) \(^\circ\)

 

 \(\angle D =\) \(^\circ\)