Respuesta :

1. circumference: 15.7cm Area: 78.5
2. circumference: 18.84cm Area: 113.04 (i think)
3. circumference: 18.86 (not sure) Area: 28.27cm
4. circumference: 153.86cm Area: 38.465cm
squared

(i'm not sure about these answers but hope it helps!)