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In the following trapezium \(XYZW\), \(∠X =\) 141\(°\) and \(∠Y =\) 39\(°\). 
 
EX_1_1_3.png
 
1. Which of the two sides are parallel?
 
2. \(∠XWZ + ∠WZY = \) \(°\).