Question

A farmer wishes to build a large rectangular grazing area of dimensions, width, , and length, ,splitting the area in to 3 equal fields by dividing the width into 3 equal pieces. The total area of all the fields must be 19000 square feet. Find the dimensions that uses the least amount of fencing

Answer 1

So an optimization problem. If we take the area like this:

Then you want to minimize 2x+4y while xy=19000