Answer:
A - 62.8
Step-by-stexplanation:
The formula for circumference is C=2πr
- C (circumferece) divided by 2 equals your r (radius) wich is 10
- plug in 10 for R use the following formula (c=2πr) to get your answer
- you should get 62.83185 which rounds to 62.8
Your welcome :)