The ratio of the length and breadth of a rectangle is 5:4 and its area is 180 cm (i) Find its length and breadth (ii) Find its perimeter

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters