Mathematics Worksheet/Circle/Area and perimeter of circle

Use $\pi =\!3,14$ if the radius are not multiple of 7 and use $\pi ={\frac {22}{7}}$ if the radius are multiple of 7.

1. Find the area of the circle with the given radius:
   1. 2 cm
   2. 5 cm
   3. 7 cm
   4. 10,5 cm
   5. 14 cm
   6. 16 cm
   7. 11,3 cm
   8. 9,8 cm
   9. 12,53 cm
   10. 18 cm
   11. 20 cm
   12. 10,263 cm
   13. 5,6 cm
   14. 21 cm
   15. 24,5 cm
   16. 17,75 cm
   17. 32,3261 cm
   18. 23,5 cm
   19. 25,63 cm
   20. 12 cm
   21. 28 cm
   22. 56 cm
   23. 42 cm
   24. 63 cm
   25. 80 cm
2. Find the perimeter of the circle with the given diameter:
   1. 14 cm
   2. 21 cm
   3. 12 cm
   4. 28 cm
   5. 23 cm
   6. 9,6 cm
   7. 13,42 cm
   8. 12,3 cm
   9. 19 cm
   10. 35 cm
   11. 32 cm
   12. 13,652 cm
   13. 9,462 cm
   14. 11,4531 cm
   15. 42 cm
   16. 45 cm
   17. 54 cm
   18. 52,5 cm
   19. 36,4 cm
   20. 25,643 cm
   21. 65 cm
   22. 76 cm
   23. 84 cm
   24. 95 cm
   25. 100 cm