1. The exterior angle of a triangle is of measure \(99°\) and one of its interior opposite angles is \(29°\). Find the measure of the other interior opposite angle.
The value of the other interior opposite angle is \(°\).
2. The two interior opposite angles of an exterior angle of a triangle are \(54°\) and \(80°\). Calculate the measure of the exterior angle.
The measure of the exterior angle is \(°\).