Problem 8. (1 point) Applied Optimization A farmer wishes to enclose two identical adjoining rectangular pens against the side of a large barn. She wants each pen to have an area of 600 square feel; and will use the barn as one side of the enclosure. What is the least amount of fencing needed (in feet) to create the two pens? The least amount of fence required is 'ft NOTE: enter an answer that is correct to at least three decimal places (or an exact value)