A rectangular field is 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?
A rectangular field is 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?
Explanation
We have: l = 20 ft
and lb = 680 sq. ft.
So, b = 34 ft
Length of fencing = (l + 2b)
= (20 + 68) ft
= 88 ft