~ 12 days 1/15 FEEDBACK Content attribution QUESTION 15 . 1 POINT A 81-inch by 216-inch piece of cardboard is used to make an open-top container by removing a square from each corner of the cardboard and folding up the flaps on each side. What is the area of the square that should be cut from each corner to get a container with the maximum volume? Give your answer as a simplified fraction or a decimal rounded to four places. Provide your answer below: square inches FEEDBACK Content attribution SUBMIT