Question

Consider two circular swimming pools. Pool A has a radius of 12 feet, and Pool B has a diameter of 7.5 meters. Which pool has a greater circumference? How much greater? Justify your answer.

Answer 1

Pool a has a greater circumference because 12*2= `14
So, 14 equals the diameter.
7.5 is the diameter of pool b.
Multiply both by pi.
pool a equals 43.96
pool b equals 23.55.
Hope this helps! :)

Answer 2

Pool A is
`16.5\pi\text{ feet}` greater than Pool B.

Explanation:

Consider two circular swimming pools.

Formula: Circumference :
`=2\pi r`

Pool A has a radius of 12 feet

Circumference of Pool A
`=2\pi * 12 = 24\pi \text{ feet}`

Pool B has a diameter of 7.5 meters

Circumference of Pool A
`=\pi * 7.5 = 7.5\pi \text{ feet}`

Pool A has greater circumference.

Difference of circumference
`=24\pi - 7.5\pi = 16.5\pi\text{ feet}`

Hence, Pool A is
`16.5\pi\text{ feet}` greater than Pool B.