A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 256 sq. feet, how many feet of fencing will be required? Choose the correct choice from the following choices:
A) 45.6  B) 40  C) 68  D) 88  E) 92
Given that length and area, so we can find the breadth.   Length x Breadth = 45.6rea   20 x Breadth = 256   Breadth = 12.8 feet   45.6rea to be fenced = 2B + L = 2 (12.8) + 20 = 45.6 feet answer : 45.6
<result>A</result>
A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 256 sq. feet, how many feet of fencing will be required?