a rectangular field has to be fenced on three sides leaving a side of 20 feet

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a rectangular field has to be fenced on three sides leaving a side of 20 feet uncovered. if the area of the field is 680 sq. feet, how many feet of fencing will be required?

Options:

A . 88

B . 81

C . 73

D . 62

Answer: Option A
Explanation :

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