I don't understand 7-9 but it's okay if you help me with one math problem.

I don t understand 7-9 but it s okay if you help me with one math problem. class=

Verified Answer :

To find circumference, just multiply the diameter by pi.

1. 17 3.14 = 53.38 meters

2. 3
2 = 6 3.14 = 18.84 feet

3. 14
2 = 28 x 3.14 = 87.92 inches