Answer:
18 m
Explanation:
Perimeter is the sum of all the sides.
A rectangular pool has two sides at 5 1/2 m and two sides at 3 1/2 meters.
Add the whole numbers, then add the halves. Now ad the two parts together.
5 1/2 + 3 1/2 + 5 1/2 + 3 1/2 = 16 + 2 = 18 m