A rectangular field is to be fenced on three sides leaving a side of 40 feet uncovered.If the area of the field is 680 sq.ft, how many feet of fencing will be required?  Select the correct option:
A) 44ft  B) 88ft  C) 74ft  D) 11ft  E) 66ft
Given that length and area, so we can find the breadth.   Length x Breadth = Area   40 x Breadth = 680   Breadth = 17 feet   Area to be fenced = 2B + L = 2 (17) + 40 = 74 feet   Answer: 74ft) 74ft
<result>C</result>
A rectangular field is to be fenced on three sides leaving a side of 40 feet uncovered.If the area of the field is 680 sq.ft, how many feet of fencing will be required?