Given that angle 5 is 115° and lines M and N are parallel, we can analyze the relationships between the angles formed by the transversal.
Since the two lines are parallel, we can use the properties of corresponding and alternate interior angles.
- Angle 5 is 115°.
- Angle 6 (which is corresponding to angle 2) will also be 115° because corresponding angles are equal when two parallel lines are cut by a transversal.
Now, to find angle 2, we know that angle 2 is vertically opposite to angle 6, and vertically opposite angles are also equal. Therefore:
- Angle 6 = 115°
- Angle 2 (which is vertically opposite angle 6) = 115°
Thus, the measure of angle 2 is:
115°.