Direction: Read carefully, then solve the problem., 1. The perimeter of a square bulletin board is 280 cm. How long is one of its side?, 2. The perimeter of a rectangular board is 24 cm. If its length is 9 cm and its width is one third, of its length, what is its width?, have the same, 3. The parallelogram which measure 15 cm by 25 cm and a square, perimeter. What is the length of one side of the square?