Farmer samantha has a cylindrical grain silo with a diameter of 12 feet and a height of 40 feet. the silo is filled with grain that weighs approximately 48 pounds per cubic foot. samantha knows that each of the 20 cows on her farm will eat approximately 28 pounds of grain per day. if the grain silo is full, approximately how many pounds of grain will remain after the 20 cows eat for 100 days each? round your answer to the nearest whole pound.

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.