1. A farmer needs to enclose a section of land in the shape of a parallelogram by using one side of a barn for one side. The barn and the side opposite of the barn will both be 9 feet long. One of the other sides will be 7 feet long. What is the length of the last side? (Circle the correct answer.) A. 2 feet B. 16 feet C. 9 feet D. 7 feet​