A boat travels 120 miles downriver in less time than it takes to travel 80 miles upriver. The boat makes the entire trip (both directions) in 12 hours. If the speed of the boat in still water is 20mph, what is the speed of the current?

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.