( explain how u do it for brainliest )
do all 4 also

Answer:
Circle 1: 56.55
Circle 2: 53.41
Circle 3: 9.42
Circle 4: 15.71
Step-by-step explanation:
Formula for Circumference
C=2πR
Using Circle 1 as example:
Radius of 9
C=2π(9)
2*9= 18
18π
56.55
Answer:
1. 56.52
2.53.38
3. 9.42
4. 15.7
Step-by-step explanation:
These are the unrounded answers here are the rounded ones...
56.5
53.4
9.4
15.7
If this helped pls give brainliest.