Find the radius from the area

Work backwards: undo the formula to find the radius.

1. A circle has an area of 6644.24 cm². Use π = 3.14. What is its radius, in cm?
2. A circle has an area of 1962.5 cm². Use π = 3.14. What is its radius, in cm?
3. A circle has an area of 1661.06 cm². Use π = 3.14. What is its radius, in cm?
4. A circle has an area of 4534.16 cm². Use π = 3.14. What is its radius, in cm?
5. A circle has an area of 452.16 cm². Use π = 3.14. What is its radius, in cm?
6. A circle has an area of 12861.44 cm². Use π = 3.14. What is its radius, in cm?
7. A circle has an area of 15828.74 cm². Use π = 3.14. What is its radius, in cm?
8. A circle has an area of 5278.34 cm². Use π = 3.14. What is its radius, in cm?
9. A circle has an area of 2461.76 cm². Use π = 3.14. What is its radius, in cm?
10. A circle has an area of 16277.76 cm². Use π = 3.14. What is its radius, in cm?
11. A circle has an area of 9498.5 cm². Use π = 3.14. What is its radius, in cm?
12. A circle has an area of 314 cm². Use π = 3.14. What is its radius, in cm?
13. A circle has an area of 53066 cm². Use π = 3.14. What is its radius, in cm?
14. A circle has an area of 52252.74 cm². Use π = 3.14. What is its radius, in cm?
15. A circle has an area of 7539.14 cm². Use π = 3.14. What is its radius, in cm?
16. A circle has an area of 10201.86 cm². Use π = 3.14. What is its radius, in cm?
17. A circle has an area of 2122.64 cm². Use π = 3.14. What is its radius, in cm?
18. A circle has an area of 37994 cm². Use π = 3.14. What is its radius, in cm?
19. A circle has an area of 907.46 cm². Use π = 3.14. What is its radius, in cm?
20. A circle has an area of 2640.74 cm². Use π = 3.14. What is its radius, in cm?