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