Suppose that you needed to make a pen for some small animals

Last updated: 5/27/2023

Suppose that you needed to make a pen for some small animals You have 13 m of fencing You decide to make a circular pen because if you wish to enclose an area using a given length of fencing then a circular fence encloses a larger area than a fence of any other shape What is the radius r of the pen Express your answer in meters to four significant figures