Respuesta :

Formula for Circumference is 2*Pi*radius


1. 18.84 in.
2. 56.52 cm
3. 4.71 ft
4. 25.12 m
5. 37.68 ft.
6. 12.56 yd.
7.  43.96 in
8. 28.26 cm
9. 7.85 m