Answer :
The parallelogram has a perimeter of 20
2 sides = 3 each which means 6 total
20-6=16
16/2 for the other two sides = 8
So the lengths of all the sides are 8,3,8,3 kilometers
2 sides = 3 each which means 6 total
20-6=16
16/2 for the other two sides = 8
So the lengths of all the sides are 8,3,8,3 kilometers