The total length of fencing, in feet, that Bethany will need is 13 1/2 feet.
The total length of fencing needed can be determined by calculating the perimeter of the area. Perimeter is the distance round the area.
Perimeter of the area = 2(length + width)
2 (4 3/4 + 2)
2 x 6 3/4
2 x 27/4 = 13 1/2 feet.