Question

a rectangular field is to be on three sides leaving a side of 20cm uncovered if the area of the field its is 680m how many metre of he is required

Answer 1

We are given with length and area, so we can find the breadth.
as Length * Breadth = Area
=> 20 * Breadth = 680
=> Breadth = 34 feet

Area to be fenced = 2B + L = 2*34 + 20
= 88 feet