please answer of 6 of these but if you do then you get brainliest but answer all 6 and show the work on how to do it also for each problem

please answer of 6 of these but if you do then you get brainliest but answer all 6 and show the work on how to do it also for each problem class=

Respuesta :

5. r×2×pi

7km×2×pi=43.98km

6. d×pi

20cm×pi=62.83cm

7. d×pi

8.5m×pi=26.70m

8. r×2×pi

11yd×2×pi=69.12yd

9. d×pi

6(2/5)ft×pi=20.11ft

10. r×2×pi

25in×2×pi= 157.08in