Iguess i'm wondering either, which of my methods is right, or if all are wrong then could you put me on the right track to the right equation and such? anyways.. you so much! it's been ages since i've been one here (everybody, then everybody) so im new but i remember there was like a follow or something? whatever it was ill give that too you. : ) cheerio!

Remember, to fence around, it is the perimiter, the perimiter is the length of fencing required to go around the entier field
none of your diagrams are right
for 1. the perimiter is over 180ft
2. the lenghts are already 180, that means widths are 0 which is false
3. the length is equal to the width, we want double

solution
perimiter=length+width+length+width
P=2L+2W
P=2(L+W)
if
L=2W

P=2(L+W)
P=2(2W+W)
P=2(3W)
P=6W

if the perimiter is equall to the amount of fencing (180ft) then
180=6W
divide boths ides by 6
30=W
width=30
L=2W
L=2(30)
L=60

length is 60, width is 30
length first then width
60,30 is da answer
see diagarm if you can't figure it out