A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 210 sq. feet, how many feet of fencing will be required?  Choose the correct option: A) 34 B) 41 C) 68 D) 88 E) None
EXPLANATION   We have: l = 20 ft and lb = 210 sq. ft.   So, b = 10.5 ft.   Length of fencing = (l + 2b) = (20 + 21)= 
<gadget id="calculator">(20 + 21)</gadget>
<output>41</output>
41 ft.   Answer 41
<result>B</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 210 sq. feet, how many feet of fencing will be required?