As per given by the question,
There are given a parallelogram, and their height and width.
Now,
Suppose height of the parallelogram is h and width of the parallelogram is b.
So,
According to the properties of parallelogram,
The opposite side are congruent.
Then,
Perimeter of the parallelogram is,
Perimeter= sum of all side
Now, area of the parallelogram,
The area of the parallelogram is,
Here, height is 9 km and width is 18.5 km
So,
Hence, the perimeter of parallelogram is 55 km and area of parallelogram is 166.5 km