Mrs. Clark is planning her testing schedule for her two classes. She plans to give a test every 9 school days in her first class and every 12 school days in her second class. What is the fewest number of school days it will take for Mrs. Clark
to give tests to both classes on the same day?

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.