Suppose a farmer wishes to construct an enclosure consisting of two identital rectangular areas up against a river (on top) as shown below. Assume the farmer doesn’t need to put fencing along the ri

Suppose a farmer wishes to construct an enclosure consisting of two identital rectangular areas up against a river (on top) as shown below. Assume the farmer doesn’t need to put fencing along the river. If the farmer only has a 600 m2 field to construct the enclosure on, find the minimum amount of fence that the farmer needs to use and the dimensions for the enclosure that maximize it.