Assuming all four sides are being fenced, 420 feet of fencing is required, which converts to 140 yards.
85 yards = 77.724 metres
85 yards = 0.077724 kilometers
85 feet is 28.33 yards. (divide feet by three to get yards)
Answer: 8.5 yds = 306 "
If the garden is rectangular shape then the perimeter (total length of all sides) would be 80 feet. If you divide that by3 you would have 26.667 yards. So it sounds as though it would require at least more 2 yards of fencing.
Assuming that you have a rectangle shaped area, 20 yards long by 15 yards wide, and you want to completely enclose the area with the fencing, then you have a problem where you need to find the perimeter of a rectangle. Perimeter = 2 * Length + 2 * Width Perimeter = 2 * (20 yd) + 2 * (15 yd) = 40 yd + 30 yd = 70 yards
260 yards
The field is 50 yards long and 85 feet wide.
That is 36,720 inches
24+24+20+20=88 yards of fencing
40 yards