if M and N are parallel and angle 1 is 135° , what is the measure of angle 2?

To find the measure of angle 2, we need more information or a diagram. Please provide additional context for me to assist you correctly.

If M and N are parallel lines, then angles 1 and 2 are alternate interior angles. Alternate interior angles are congruent when the lines are parallel. Therefore, angle 2 has a measure of 135°.

To find the measure of angle 2, we need to use the fact that angles formed by parallel lines and a transversal are congruent. In this case, angle 1 and angle 2 are corresponding angles, so they must have the same measure.

Since angle 1 is given to be 135°, we can conclude that angle 2 is also 135°.