Kelly is making a triangular chicken coop as shown in the diagram below. She is going to fence in the area for her chickens.
About how many feet of fencing will Kelly need?
42 feet
48 feet
57 feet
72 feet
![Kelly is making a triangular chicken coop as shown in the diagram below She is going to fence in the area for her chickens About how many feet of fencing will K class=](https://us-static.z-dn.net/files/d5a/4125a3de270b5ae636745c36044f21c8.png)