Answer:
15 meters
Step-by-step explanation:
What we know:
Total perimeter: 50m
Width: 10m
Since we have the width, we know that two sides of the pool are 10 meters long.
10m+10m=20m
Thus, the two smaller edges of the pool are 20m combined. We can subtract this from the total perimeter to find the total length of both longer sides combined.
50m-20m=30m
Now we know that the two long sides combined are 30 meters. We also know that since the pool is rectangular, these sides are of equal length, so we can divide the 30 meters between the two sides equally.
30/2=15
This means that each long side is 15 meters long, and the length of the pool is 15 meters.
