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1. The sum of two angles of a quadrilateral is 154\(°\). The sum of the other two angles is \(°\).
2. Each exterior angle of a regular hexagon is \(°\).
3. In the following figure, \(∠m = 49°\) and \(∠n = 77°\). Find the value of \(x\).
The measure of angle \(x\) is\(°\).
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