SOLUTION: A rancher wants to build a rectangular pen with an area of 100 m. (a) Find a function that models the length of fencing required. (b) Find the pen dimensions that require the mi

Question 1184717: A rancher wants to build a rectangular pen with an area of 100 m.
(a) Find a function that models the length of fencing required.
(b) Find the pen dimensions that require the minimum amount of fencing.
Answer by ikleyn(52781)   (Show Source): You can put this solution on YOUR website!
.
A rancher wants to build a rectangular pen with an area of 100   m^2.
(a) Find a function that models the length of fencing required.
(b) Find the pen dimensions that require the minimum amount of fencing.
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            Pay attention on how I corrected your post - - - it is VERY IMPORTANT CORRECTION ( ! )

            How a person writes the dimension units, clearly shows 
            if he (or she) does understand what he (or she) writes.

See the solution in the lesson
- Calculus optimization problems for shapes in 2D plane, Problem 4
in this site.

The answer is: the pen should be a square with the side length of 10 meters.

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