See attached. I need to make sure I get this right, its a homework assignment. Im pretty sure I have the answer figured out but like I said I want to make sure.

Please help . 300 pts.

A holding pen for cattle must be square and have a diagonal length of 120 meters. Find the length of a side of the pen. Find the area of the pen. The length of a side of the pen Is meters.(Simplify your answer. Type an exact answer, using radicals as needed.) The area of the pen Is square meters