Answer:
The perimeter is 35.6 meters
Explanation:
The pool measures 8m by 5m. The tiles surrounding the pool add 2.4 m to each edge. That is added to the original dimension, which makes the outside dimensions 10.4 m by 7.4 m.
The perimeter of a rectangle is the sum of all its sides:
2*(10.4m) + 2*(7.4 m)
20.8 m + 14.8 m
Perimeter = 35.6 m