Question 1196603
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Hi,
A rectangular field is three times as long as its width 'w'
L = 3w
     *[illustration rectangle.png].
2L + 2w = P
2(3w) + 2w = 640ft
 8w = 640ft
  w = 80ft  and L = 3(80ft) = 240ft
Checking our Answer
2*240ft + 2*80ft= 640ft  
Wish You the Best in your Studies.
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