Which of the following bodies of water is noted for being one of the world’s largest irrigation systems?
a.
the caspian sea
b.
lake balkhash
c.
the kyzylkum canal
d.
the karakum canal

Afootpath is to be constructed in a park in the shape of a parallelogram. when a coordinate plane is laid over a map of the park, the vertices of the footpath are (-4,2) (8,2) (11,7) and (-1,7). what is the perimeter of this path