13 feet
First add the extra 4 meters to both the length and width of the rectangular pool. So now you have an area 7 meters by 9 meters (don't forget the walk is surrounding the pool; not just on two sides). Calculate the area which is 63 meters squared = 9 * 7. Since you only want the are of the walk, just subtract the area of the rectangular pool by itself without the brick walk added, 3 * 5 = 15 meters squared. Now just subtract the area of the pool plus the brick walk and the area of the pool itself, 63 - 15 = 48 meters squared. Which is your answer.
11250 square feet
15x9=135
135
If it is a rectangular pool, then multiply the length by the width. If it is a circular pool then the surface area = (Pi/4)*(diameter^2)
23,040
There could be many answers, depending on the shape of the pool (square vs. rectangular). it is rectangular
13 feet
15x9 = 135 squared feet
24x14=336
A rectangular pool shape is longer than it is wide. A lap would be comprised of swimming the length of the pool.
First add the extra 4 meters to both the length and width of the rectangular pool. So now you have an area 7 meters by 9 meters (don't forget the walk is surrounding the pool; not just on two sides). Calculate the area which is 63 meters squared = 9 * 7. Since you only want the are of the walk, just subtract the area of the rectangular pool by itself without the brick walk added, 3 * 5 = 15 meters squared. Now just subtract the area of the pool plus the brick walk and the area of the pool itself, 63 - 15 = 48 meters squared. Which is your answer.
11250 square feet
If it's rectangular, then the area of the water's surface is (9' x 18') = 162 square feet. The bottom of the pool has a different area if it's slanted.
748
2347 meters