A rectangular field is going to be enclosed and divided into two separate rectangular areas. (Areas do not have to be equal). Find the minimum fencing that is required if the total area of the field is 1200m2.
Let the sides of the rectangle be X and Y meters.
Suppose the rectangle is divided in a way that the dividing line connects Y sides.
Then we have 2 sides of length Y and 3 sides of length X.
So the total length ...
This shows how to find the minimum fence required for a given area.