Quickly Divide a Circle Perfectly

A quick super accurate way to divide the circumference of a circle.

Just find the number of points you want to divide the circle into in the list below and multiple the radius by the value (e.g. 5 slices of a 4" diameter circle would be 2 * 1.1756) then set your calipers/compass

1. n/a
2. n/a
3. 1.7321
4. 1.4142
5. 1.1756
6. 1.0000
7. 0.8678
8. 0.7654
9. 0.6840
10. 0.6180
11. 0.5635
12. 0.5176
13. 0.4786
14. 0.4450
15. 0.4158
16. 0.3902
17. 0.3675
18. 0.3473
19. 0.3292
20. 0.3129

The multipliers above were calculated with the following formula

DEG = 360/n where "n" is how many points around the circle you want

sin(DEG/2)*2 = your multiplier

Here is a link to Jack Houweling's page: https://www.youtube.com/user/Jacka440 I highly recommend you check it out.