You are given the length
and width
of a 4-sided polygon. The polygon can either be a rectangle or a square.
If it is a square, return its area. If it is a rectangle, return its perimeter.
6, 10 --> 32
3, 3 --> 9
Note: for the purposes of this kata you will assume that it is a square if its length
and
width
are equal, otherwise it is a rectangle.
def area_or_perimeter(l , w)
l == w ? l*w : (l+w)*2
end