Problem 3. Suppose that you are given a rape of total length 4 units which you can use to farm the perimeter of a rectangle. l[321.11 r and y ta he the side lengths [see picture]. $I' {a} \"'hat is the length of the side 3; in terms of r. {b} Give a formula for 111:1}? the area of the rectangle. {a} \"'hat is the limit of Alix} as r 3-'? {d} \"'hat is the limit of the ratio between the area 11(1) and the side length m as m > I)