#### Answer

110; If lines are parallel then corresponding angles are congruent.

#### Work Step by Step

Looking and the diagram, lines a and b are parallel. A transversal line intersects both a and b.
The Corresponding Angles Postulate states that "if a transversal intersects two parallel lines, corresponding angles are congruent.
Angle 2 is a corresponding angle to the given angle of 110 degrees. Therefore they are the same measure.
Remember: Congruent means same size, same shape