The length of the hypotenuse of a right triangle is 145 units. the length of one leg of the triangle is 144. mike wrote the following step to find the length of the unknown leg: length of the unknown leg = 1452 − 1442 = 21,025 − 20,736 = 289 units which statement best explains whether mike's step is correct or incorrect?

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.