Is it possible to design a rectangular park of perimeter 80 m and area 400 m²? If so, find its length and breadth.
a) Yes, length = 20 m, breadth = 40 m
b) No, it is not possible
c) Yes, length = 30 m, breadth = 10 m
d) Yes, length = 40 m, breadth = 20 m