A farmer has 12000m roll of fencing. He wants to make 2 paddocks by splitting a rectangle enclosure in half. What are the dimensions of the enclosure with the largest area that he can make with the fencing he has?

I got 6,000,000 m^2, is it right?

PLZ help

the answer is 40,000 because if you go to desmos and type the equation in, you get 40,000. your welcome.