I don't know this and this homework
Let the length is L & width is W
hence area, L×W=100; or, L= 100/W
Perimeter , 2 (L+W)=401
We can substitute value of L from above we get
2 (100/W +W)=401
Solving we get
We can write it as
Or we can get 2w (w-200)-1 (w-200)=0
Or we get, (w-200)(2w-1)=0
Hence we get w=200 or w=0.5
Substituting l=100/200= 0.5
Hence dimensions are
200 ft length and
width= 0.5 ft
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