SOLUTION: Find the length and width of a rectangle that has area 55 square centimeters and a minimum perimeter. Round your answer to one decimal place.

SOLUTION: Find the length and width of a rectangle that has area 55 square centimeters and a minimum perimeter. Round your answer to one decimal place.

Algebra.Com

Question 628653: Find the length and width of a rectangle that has area 55 square centimeters and a minimum perimeter. Round your answer to one decimal place.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

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The formula for perimeter is

By substitution:

Here's the plot:

The minimum perimeter is around
and
Since ., and ,
It looks like the perimeter is minimum when the
rectangle is a square.

OK
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