A rectangular field is to be fenced on 3 sides leaving a side of 20 feet unfenced. If the area of the field is 680 Sq. feet how many feet of fencing will be required?
Answer: 88 feet
Explanation
Area = Length x Width
680 = 20 x Width
Width = 34 ft
Fencing is required for 3 sides:
Fencing length = Width + Width + Length
= 34 + 34 + 20
= 88 ft
So, the correct answer is 88 ft.
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