You can't: there are many different shapes with the same area that have different perimeters. For example, if you have an area of 100, the figure could be a 10 by 10 square (with a perimeter of 40),...
You can't do that. For one thing, perimeter is a distance, and doesn't even have the same units of measurement that area has. And for another thing, there's no direct connection between area and...