A farmer plans to fence off three rectangular grazing fields along a straight river by building four sections of the fence perpendicular to the river and one parallel to it If the total area of the three sections is to be 6400 ft what length would the fence parallel to the river have to be in order to use the least amount of total fencing Carefully draw a picture to help with the set up 2x 4y P 24 4 140 P 2x 25600 25600X ZX 1 2 25600 2 X 0 27 z5 bcc 2 A XY 1400 XX 6400 X 7 CY