The first thing we should do, it put both measurements into the same unit. I will use feet.
To convert meters to feet, we can use the formula: 1 m = 3.28 ft
so, we multiply both sides by 7.5
7.5 m = 24.6 ft
The diameter of pool B is 24.6 ft
The radius of pool A is 12 ft. To get diameter, simply multiply it by 2.
12 ft * 2 = 24 ft
The diameter of pool A is 24 ft
Now that we know diameter, we can get the circumference
The equation for circumference is c = 2πr or c = πd
We have the diameter, so we will use the second one.
Plug in D in both equations, and we get 24π ft for pool A, and 24.4π ft for pool B
In decimals, it is approximately 75.398 ft for pool A and 76.655 ft for pool B
In this case, we see that pool B is bigger, by 0.4π ft, or 1.2566 ft
