Ok, well I want to HELP you and not just give out answers.
WARNING: I'm not a teacher, by any means. Heh.
Try to use a system to look at all possibilities and you may notice a pattern...
What would be the length of all four sides if the shape were square?
Now change the lengths by one unit at a time while still maintaining the same perimeter. For each of these new rectangles determine the area.
There are only a limited number of possibilities.
When you make the whole list compare all the areas and look for the largest.
And the next time you do a problem like this, I promise you won't have to do as many steps.
I hope this helps but please don't make a habit out of asking for homework help on this board. You need to find a more appropriate source of help, is there anywhere you can go at school? Well, I'm sure you can figure something out.
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