Apair of parallel lines is cut by a transversal: a pair of parallel lines cut by a transversal is shown. the inside bottom right angle is labeled 80 degrees. the alternate interior angle is cut by a ray and is labeled as x on one side and 20 degrees on the other. what is the measure of angle x?

Which of the following would be a correct step in proving that triangle abc is congruent to triangle cda? a. use a protractor to measure the angles and show that all the corresponding angles are equal in measure. this will allow you to prove congruence by aaa. b. show that segment ab is parallel to segment cd and segment ad is parallel to segment cb. this will allow you to prove congruency by asa. c. show that is segment ab is perpendicular to segment ad. this will allow you to prove congruence by sas. d. none of the above.