Answer:
Rectangular plot: 2160m by 1080m
Length of Vegetable Garden: 360m
Explanation:
Rectangular plot:
l = 2x
Perimeter of a rectangle = 2(l + b)
Since x is the breadth of the rectangular plot
2( l + x) = 6480m
l + x = 3240m
2x + x = 3240m
3x = 3240m
x = 1080m
Therefore, the rectangular plot dimension is (2160m by 1080m)
Vegetable Garden:
Perimeter of a square = 4y
4y = 1440m
y = 1440m / 4
y = 360m
Therefore the length of the vegetable garden is 360m