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Minimization

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A rancher wants to fence in an area of 1000000 square feet in a rectangular field and then divide it in half with a fence down the middle parallel to one side. What is the shortest length of fence that the rancher can use?

Solution Summary

This is a minimization problem regarding area and length of fence.

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This is a minimization problem:
a a a
b
The area looks like the above graph, with height = a and length=b
Then we have a*b = ...

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